JEE Main & Advanced Physics Motion in a Straight Line / सरल रेखा में गति Question Bank

done Assertion and Reason Total Questions - 30

• question_answer1)
  Assertion          : A body can have acceleration even if its velocity is zero at a given instant of time. Reason            :           A body is momentarily at rest when it reverses its direction of motion.           
  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer2)
  Assertion          :           Two balls of different masses are thrown vertically upward with same speed. They will pass through their point of projection in the downward direction with the same speed.             Reason            :   The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball.              
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer3)
              Assertion          :           If the displacement of the body is zero, the distance covered by it may not be zero. Reason            :           Displacement is a vector quantity and distance is a scalar quantity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer4)
  Assertion          :           The average velocity of the object over an interval of time is either smaller than or equal to the average speed of the object over the same interval. Reason            :           Velocity is a vector quantity and speed is a scalar quantity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer5)
  Assertion          :           An object can have constant speed but variable velocity. Reason            :           Speed is a scalar but velocity is a vector quantity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.             done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer6)
  Assertion          :           The speed of a body can be negative. Reason            :           If the body is moving in the opposite direction of positive motion, then its speed is negative.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.             done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer7)
  Assertion          :           The position-time graph of a uniform motion in one dimension of a body can have negative slope. Reason            :           When the speed of body decreases with time, the position-time graph of the moving body has negative slope.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.             done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer8)
  Assertion          :           A positive acceleration of a body can be associated with a ?slowing down? of the body. Reason            :           Acceleration is a vector quantity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.             done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer9)
  Assertion          :           A negative acceleration of a body can be associated with a ?speeding up? of the body. Reason            :           Increase in speed of a moving body is independent of its direction of motion.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.             done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer10)
  Assertion          :           When a body is subjected to a uniform acceleration, it always move in a straight line. Reason            :           Straight line motion is the natural tendency of the body.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true.             done clear
  View Solution play_arrow

• question_answer11)
  Assertion          :           Rocket in flight is not an illustration of projectile. Reason            :           Rocket takes flight due to combustion of fuel and does not move under the gravity effect alone.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.             done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer12)
  Assertion          :           The average speed of a body over a given interval of time is equal to the average velocity of the body in the same interval of time if a body moves in a straight line in one direction. Reason            :           Because in this case distance travelled by a body is equal to the displacement of the body.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.             done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer13)
  Assertion          :           Position-time graph of a stationary object is a straight line parallel to time axis. Reason            :           For a stationary object, position does not change with time.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.             done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer14)
  Assertion          :           The slope of displacement-time graph of a body moving with high velocity is steeper than the slope of displacement-time graph of a body with low velocity. Reason            :           Slope of displacement-time graph = Velocity of the body.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer15)
  Assertion          :           Distance-time graph of the motion of a body having uniformly accelerated motion is a straight line inclined to the time axis. Reason            :           Distance travelled by a body having uniformly accelerated motion is directly proportional to the square of the time taken.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true.             done clear
  View Solution play_arrow

• question_answer16)
  Assertion          :           A body having non-zero acceleration can have a constant velocity. Reason            :           Acceleration is the rate of change of velocity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true.               done clear
  View Solution play_arrow

• question_answer17)
  Assertion          :           A body, whatever its motion is always at rest in a frame of reference which is fixed to the body itself. Reason            :           The relative velocity of a body with respect to itself is zero.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.             done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer18)
  Assertion          :           Displacement of a body may be zero when distance travelled by it is not zero. Reason            :           The displacement is the longest distance between initial and final position.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.             done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer19)
  Assertion          :           The equation of motion can be applied only if acceleration is along the direction of velocity and is constant. Reason            :           If the acceleration of a body is constant then its motion is known as uniform motion.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.             done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer20)
  Assertion          :           A bus moving due north takes a turn and starts moving towards east with same speed. There will be no change in the velocity of bus. Reason            :           Velocity is a vector-quantity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false. done clear
  E)
              If assertion is false but reason is true.             done clear
  View Solution play_arrow

• question_answer21)
  Assertion          :           The relative velocity between any two bodies moving in opposite direction is equal to sum of the velocities of two bodies. Reason            :           Sometimes relative velocity between two bodies is equal to difference in velocities of the two.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.             done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer22)
  Assertion          :           The displacement-time graph of a body moving with uniform acceleration is a straight line. Reason            :           The displacement is proportional to time for uniformly accelerated motion.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.             done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer23)
  Assertion          :           Velocity-time graph for an object in uniform motion along a straight path is a straight line parallel to the time axis. Reason            :           In uniform motion of an object velocity increases as the square of time elapsed.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.             done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer24)
  Assertion          :           A body may be accelerated even when it is moving uniformly. Reason            :           When direction of motion of the body is changing then body may have acceleration.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true.             done clear
  View Solution play_arrow

• question_answer25)
  Assertion          :           A body falling freely may do so with constant velocity. Reason            :           The body falls freely, when acceleration of a body is equal to acceleration due to gravity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true.             done clear
  View Solution play_arrow

• question_answer26)
  Assertion          :           Displacement of a body is vector sum of the area under velocity-time graph. Reason            :           Displacement is a vector quantity.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.             done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer27)
  Assertion          :           The position-time graph of a body moving uniformly is a straight line parallel to position-axis. Reason            :           The slope of position-time graph in a uniform motion gives the velocity of an object.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true.             done clear
  View Solution play_arrow

• question_answer28)
  Assertion          :           The average speed of an object may be equal to arithmetic mean of individual speed. Reason            :           Average speed is equal to total distance travelled per total time taken.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.             done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer29)
  Assertion          :           The average and instantaneous velocities have same value in a uniform motion. Reason            :           In uniform motion, the velocity of an object increases uniformly.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.             done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer30)
  Assertion          :           The speedometer of an automobile measure the average speed of the automobile. Reason            :           Average velocity is equal to total displacement per total time taken.
  A)
              If both assertion and reason are true and the reason is the correct explanation of the assertion.           done clear
  B)
              If both assertion and reason are true but reason is not the correct explanation of the assertion.           done clear
  C)
              If assertion is true but reason is false.           done clear
  D)
              If the assertion and reason both are false.           done clear
  E)
              If assertion is false but reason is true.             done clear
  View Solution play_arrow