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question_answer1)
Assertion : In projectile motion, the angle between the instantaneous velocity and acceleration at the highest point is\[180{}^\circ \]. Reason : At the highest point, velocity of projectile will be in horizontal direction only.
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
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question_answer2)
Assertion : Two particles of different mass, projected with same velocity at same angles. The maximum height attained by both the particle will be same. Reason : The maximum height of projectile is independent of particle mass.
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
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question_answer3)
Assertion : The maximum horizontal range of projectile is proportional to square of velocity. Reason : The maximum horizontal range of projectile is equal to maximum height attained by projectile.
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
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question_answer4)
Assertion : Horizontal range is same for angle of projection q and (90 ? q). Reason : Horizontal range is independent of angle of projection.
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
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question_answer5)
Assertion : For projection angle \[{{\tan }^{-1}}(4)\], the horizontal range and the maximum height of a projectile are equal. Reason : The maximum range of projectile is directly proportional to square of velocity and inversely proportional 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
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question_answer6)
Assertion : The trajectory of projectile is quadratic in y and linear in x. Reason : y component of trajectory is independent of x-component.
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
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question_answer7)
Assertion : In javelin throw, the athlete throws the projectile at an angle slightly more than 45°. Reason : The maximum range does not depends upon angle of projection.
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
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question_answer8)
Assertion : When a body is dropped or thrown horizontally from the same height, it would reach the ground at the same time. Reason : Horizontal velocity has no effect on the vertical direction.
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
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question_answer9)
Assertion : When the velocity of projection of a body is made n times, its time of flight becomes n times. Reason : Range of projectile does not depend on the initial velocity of a 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
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question_answer10)
Assertion : The height attained by a projectile is twenty five percent of range, when projected for maximum range. Reason : The height is independent of initial velocity of projectile.
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
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question_answer11)
Assertion : When range of a projectile is maximum, its angle of projection may be 45° or 135°. Reason : Whether q is 45° or 135°, value of range remains the same, only the sign changes.
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
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question_answer12)
Assertion : In order to hit a target, a man should point his rifle in the same direction as target. Reason : The horizontal range of the bullet is dependent on the angle of projectile with horizontal direction.
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
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question_answer13)
Assertion : When a particle moves in a circle with a uniform speed, its velocity and acceleration both changes. Reason : The centripetal acceleration in circular motion is dependent on angular 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
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question_answer14)
Assertion : During a turn, the value of centripetal force should be less than the limiting frictional force. Reason : The centripetal force is provided by the frictional force between the tyres and the road.
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
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question_answer15)
Assertion : When a vehicle takes a turn on the road, it travels along a nearly circular path. Reason : In circular motion, velocity of vehicle remains same.
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
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question_answer16)
Assertion : As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases. Reason : Banking of roads will increase the value of limiting 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
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question_answer17)
Assertion : If the speed of a body is constant, the body cannot have a path other than a circular or straight line path. Reason : It is not possible for a body to have a constant speed in an 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
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question_answer18)
Assertion : In circular motion, work done by centripetal force is zero. Reason : In circular motion centripetal force is perpendicular to the displacement.
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
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question_answer19)
Assertion : In circular motion, the centripetal and centrifugal force acting in opposite direction balance each other. Reason : Centripetal and centrifugal forces don?t act at the same 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
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question_answer20)
Assertion : If both the speed of a body and radius of its circular path are doubled, then centripetal force also gets doubled. Reason : Centripetal force is directly proportional to both speed of a body and radius of circular path.
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
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question_answer21)
Assertion : When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first. Reason : For a safe turn the velocity of automobile should be less than the value of safe limit 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
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question_answer22)
Assertion : A safe turn by a cyclist should neither be fast nor sharp. Reason : The bending angle from the vertical would decrease with increase in 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
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question_answer23)
Assertion : Improper banking of roads causes wear and tear of tyres. Reason : The necessary centripetal force is provided by the force of friction between the tyres and the road.
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
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question_answer24)
Assertion : Cream gets separated out of milk when it is churned, it is due to gravitational force. Reason : In circular motion gravitational force is equal to centripetal force.
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
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question_answer25)
Assertion : Two similar trains are moving along the equatorial line with the same speed but in opposite direction. They will exert equal pressure on the rails. Reason : In uniform circular motion the magnitude of acceleration remains constant but the direction continuously changes.
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
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question_answer26)
Assertion : A coin is placed on phonogram turn table. The motor is started, coin moves along the moving table. Reason : The rotating table is providing necessary centripetal force to the coin.
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
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