Banking Physics Thermal Properties of Matter / द्रव्य के तापीय गुण Question Bank

done Properties of Matter Total Questions - 42

• question_answer1)
  Kerosene oil rises up in a wick of a lantern because of
  A)
   diffusion of the oil through the wick done clear
  B)
   surface tension   done clear
  C)
   buoyant force of air done clear
  D)
   the gravitational pull of the wick done clear
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• question_answer2)
  Two pieces of metal when immersed in a liquid have equal up thrust on them; then
  A)
   both pieces must have equal weights done clear
  B)
   both pieces must have equal densities done clear
  C)
   both pieces must have equal volumes   done clear
  D)
   both are floating to the same depth done clear
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• question_answer3)
  If the force on the surface is doubled and area is reduced to half, pressure will
  A)
   become 2 times             done clear
  B)
   become 3 times done clear
  C)
   become 4 times     done clear
  D)
          remain unchanged done clear
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• question_answer4)
  Pressure at a point inside a liquid does not depend on
  A)
   the depth of the point below the surface of the liquid done clear
  B)
   the nature of the liquid done clear
  C)
   the acceleration due to gravity at that point done clear
  D)
   the shape of the containing vessel   done clear
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• question_answer5)
  The bulk modulus for an incompressible liquid is
  A)
   zero                  done clear
  B)
   unity done clear
  C)
   infinity               done clear
  D)
          between 0 and 1 done clear
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• question_answer6)
  An egg when placed in ordinary water sinks but floats when placed in brine. This is because
  A)
   density of brine is less than that of ordinary water done clear
  B)
   density of brine is equal to that of ordinary water done clear
  C)
   density of brine is greater than that of ordinary water   done clear
  D)
   None of these done clear
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• question_answer7)
  Water is flowing through a horizontal pipe in streamline flow. At the narrowest part of the pipe
  A)
   Velocity is maximum and pressure is minimum   done clear
  B)
   Pressure is maximum and velocity is minimum done clear
  C)
   Both the pressure and velocity are maximum done clear
  D)
   Both the velocity and pressure are minimum done clear
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• question_answer8)
  The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?
  A)
   Length = 50 cm, diameter = 0.5 mm   done clear
  B)
   Length = 100 cm, diameter = 1 mm done clear
  C)
   Length = 200 cm, diameter = 2 mm done clear
  D)
   Length = 300 cm, diameter = 3 mm done clear
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• question_answer9)
  A man is sitting in a boat which is floating in pond. If the man drinks some water from the pond, the level of water in the pond will
  A)
   rise a little                     done clear
  B)
   fall a little done clear
  C)
   remain stationary   done clear
  D)
          None of these done clear
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• question_answer10)
  In solids, interatomic forces are
  A)
   totally repulsive done clear
  B)
   totally attractive done clear
  C)
   combination of [a] and [b]   done clear
  D)
   None of these done clear
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• question_answer11)
  A body floats in a liquid containing in a beaker. The whole system as shown in Fig. is falling under gravity. The un thrust on the body due to liquid is             
  A)
    zero                                         done clear
  B)
   equal to weight of body in air done clear
  C)
   equal to weight of liquid displaced done clear
  D)
   equal to weight of immersed part of the body done clear
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• question_answer12)
  A water tank of height 10m, completely filled with water is placed on a level ground. It has two holes one at 3 m and the other at 7 m from its base. The water ejecting from
  A)
   both the holes will fall at the same spot   done clear
  B)
   upper hole will fall farther than that from the lower hole done clear
  C)
   upper hole will fall closer than that from the lower hole done clear
  D)
   more information is required done clear
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• question_answer13)
  The lift of an air plane is based on
  A)
   Torricelli's theorem done clear
  B)
   Bernoulli's theorem   done clear
  C)
   law of gravitation done clear
  D)
   conservation of linear momentum done clear
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• question_answer14)
  The rain drops falling from the sky neither injure us nor make holes on the ground because they move with
  A)
   constant acceleration done clear
  B)
   variable acceleration   done clear
  C)
   variable speed               done clear
  D)
   constant terminal velocity done clear
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• question_answer15)
  Two soap bubbles are held by a tube. What will happen?
  A)
   Air will travel from bigger to smaller bubble   done clear
  B)
   Air will not travel done clear
  C)
   Air will travel through tube done clear
  D)
   Nothing can be said done clear
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• question_answer16)
  With the increase of temperature, the surface tension of the liquid
  A)
   may increase or decrease depending on the density of liquid done clear
  B)
   remains the same done clear
  C)
   always increases done clear
  D)
   always decreases   done clear
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• question_answer17)
  According to Hooke's law of elasticity, if stress is increased, then the ratio of stress to strain
  A)
   becomes zero                 done clear
  B)
   remains constant   done clear
  C)
   decreases           done clear
  D)
          increases done clear
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• question_answer18)
  Liquid pressure at a point in a liquid does not depend on the
  A)
   density of liquid done clear
  B)
   shape of the vessel in which the liquid is kept   done clear
  C)
   depth of the point from the surface done clear
  D)
   acceleration due to gravity done clear
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• question_answer19)
  A container partly filled in a liquid is suspended from a spring balance. A small body is gently dropped in the container. The pointer of spring balance will
  A)
   read less                       done clear
  B)
   oscillate done clear
  C)
   read the same      done clear
  D)
         read more   done clear
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• question_answer20)
  Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because
  A)
   force of surface tension is equal and opposite to the force of gravity done clear
  B)
   force of surface tension predominates the force of gravity   done clear
  C)
   force of gravity predominates the force of surface tension done clear
  D)
   force of gravity and force of surface tension act in the same direction and are equal done clear
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• question_answer21)
  Which of the following materials is most elastic?
  A)
   Rubber             done clear
  B)
   Lead done clear
  C)
   Wood              done clear
  D)
          Steel   done clear
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• question_answer22)
  A stretched rubber has
  A)
   increased kinetic energy done clear
  B)
   increased potential energy   done clear
  C)
   decreased kinetic energy done clear
  D)
   decreased potential energy done clear
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• question_answer23)
  The load verses elongation graph for four wires is shown. The thinnest wire is
  A)
   a                                 done clear
  B)
   b   done clear
  C)
   c                      done clear
  D)
          d done clear
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• question_answer24)
  Elastomers are the materials which
  A)
   are not elastic at all done clear
  B)
   have very small elastic range done clear
  C)
   do not obey Hooke's law   done clear
  D)
   None of these done clear
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• question_answer25)
  The lift in an aeroplane is based on
  A)
   Law of gravitation          done clear
  B)
   Theorem of continuity done clear
  C)
   Pascal's low                   done clear
  D)
   Bernoulli's theorem   done clear
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• question_answer26)
  In the figure below is shown the flow of the liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cms. It can be said that
  A)
   the height of the liquid in the tube A is maximum done clear
  B)
   height of the liquid in the tube A and tube B is the same done clear
  C)
   height of the liquid in all the three tubes is the same done clear
  D)
   height of the liquid in tube A and C is the same   done clear
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• question_answer27)
  Houses far from the municipal water tank find it difficult to get water on the top floor even if their ceilings are lower than the level of water filled in tank. Its reason is
  A)
   pipes are more wide. done clear
  B)
   pipes are less wide. done clear
  C)
   when water flows there is loss of pressure.   done clear
  D)
   None of these done clear
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• question_answer28)
  Working of atomizer is based on
  A)
   Boyle's law done clear
  B)
   Bernoulli's law   done clear
  C)
   Newton's laws of motion done clear
  D)
   Archimedes' principle done clear
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• question_answer29)
  Ideal liquid is that liquid
  A)
   whose density is zero done clear
  B)
   whose viscosity is zero   done clear
  C)
   which is compressible done clear
  D)
   None of these done clear
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• question_answer30)
  Water is flowing through a horizontal pipe line having a restriction. Then
  A)
   pressure will be the same throughout the length of the pipe. done clear
  B)
   pressure will be greater at the restriction. done clear
  C)
   pressure will be greater in the wider portion.   done clear
  D)
   None of these done clear
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• question_answer31)
  Paint-gun is based on
  A)
   Bernoulli's theorem   done clear
  B)
   Archimedes' principle done clear
  C)
   Boyle's law         done clear
  D)
   Newton 'slaws of motion done clear
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• question_answer32)
  A tank filled with water has a hole at a certain height from its bottom. The volume of water emerging out per second from the hole does not depend on
  A)
   the height of the level of liquid above the hole. done clear
  B)
   the area of a hole. done clear
  C)
   the density of a liquid.   done clear
  D)
   the acceleration due to gravity. done clear
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• question_answer33)
  A boy carries a fish in one hand and a bucket of water in the other hand. If he places the fish in the bucket, the weight now carried by him.
  A)
   is less than before           done clear
  B)
   is more than before done clear
  C)
   is the same as before        done clear
  D)
   depends upon his speed done clear
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• question_answer34)
  A drop of oil is placed on the surface of water. Which of the following statements is correct?
  A)
   It will remain on it as a sphere done clear
  B)
   It will spread as a thin layer   done clear
  C)
   It will partly be a spherical droplet and partly a thin film done clear
  D)
   It will float as a distorted drop on the water surface done clear
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• question_answer35)
  For a fluid which is flowing steadily, the level in the vertical tubes is best represented by
  A)
      done clear
  B)
    done clear
  C)
    done clear
  D)
    done clear
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• question_answer36)
  Surface tension of a liquid is due to
  A)
   gravitational force between molecules done clear
  B)
   electrical force between molecules done clear
  C)
   adhesive force between molecules done clear
  D)
   cohesive force between molecules   done clear
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• question_answer37)
  A liquid rises in a capillary tube higher than water does. The difference may be due to the fact that
  A)
   diameter of the capillary may be different in the two cases done clear
  B)
   temperature of liquid is higher than that of water done clear
  C)
   surface tension of water is less than that of the liquid   done clear
  D)
   both [a] and [c] done clear
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• question_answer38)
  Construction of submarines is based on
  A)
   Archimedes' principle   done clear
  B)
   Bernoulli's theorem done clear
  C)
   Pascal' slaw done clear
  D)
   Newton's laws done clear
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• question_answer39)
  The action of a nib split at the top is explained by
  A)
   gravity flow                   done clear
  B)
   diffusion of fluid done clear
  C)
   capillary action                done clear
  D)
   osmosis of liquid done clear
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• question_answer40)
  Why the dam of water reservoir is thick at the bottom?
  A)
   Quantity of water increases with depth done clear
  B)
   Density of water increases with depth done clear
  C)
   Pressure of water increases with depth   done clear
  D)
   Temperature of water increases with depth done clear
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• question_answer41)
  Hydraulic lift is based on the principle of
  A)
   Pascal's law   done clear
  B)
   Bernoulli's theorem done clear
  C)
   Tori celli's theorem done clear
  D)
   Stoke's law done clear
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• question_answer42)
  A and B are two wires. The radius of A is twice that of B. They are stretched by the same load. Then the stress on B is
  A)
   equal to that on A   done clear
  B)
   four times that on A   done clear
  C)
   two times that on A done clear
  D)
   half that on A done clear
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