AIPMT 2014 physics questions with solutions

Showing 1–10 of 11 questions

• MCQmediumWork , Power and Energykinetic energy and work energy theorem

  A body of mass 4m at rest explodes into three fragments. Two pieces of mass m each move at equal speed v in perpendicular directions. The total kinetic energy generated is:

  Options

  • Option A

    mv²

  • Option B

    3mv²/2

  • Option C

    2mv²

  • Option D

    4mv²

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• MCQmediumUnit dimension and errorDimensional Analysis

  If force F, velocity v and time T are taken as fundamental units, then the dimensions of mass are:

  Options

  • Option A

    [F v T⁻¹]

  • Option B

    [F v T⁻²]

  • Option C

    [F v⁻¹ T⁻¹]

  • Option D

    [F v⁻¹ T]

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  Three equal masses m₁, m₂ and m₃ (each m) are connected by a light string over a frictionless pulley, as shown. Mass m₁ hangs vertically while m₂ and m₃ slide on a horizontal rough table of friction coefficient μ. Find downward acceleration of m₁.

  

  Options

  • Option A

    g(1-3μ)/3

  • Option B

    2gμ/3

  • Option C

    g(1-2μ)/3

  • Option D

    g(1-3μ)/2

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• MCQmediumNewtons law of motion and Frictionnewton second law and problem based on it

  The force–time graph shown gives the force F acting on a mass m. Find the change of momentum from t = 0 to 8 s.

  

  Options

  • Option A

    14 N s

  • Option B

    20 N s

  • Option C

    12 N s

  • Option D

    6 N s

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• MCQmediumNewtons law of motion and Frictionnewton second law and problem based on it

  A balloon of mass m is descending with downward acceleration a (a<g). How much mass must be removed so that it ascends with acceleration a? Assume buoyant force stays constant.

  Options

  • Option A

    2ma/(g+a)

  • Option B

    2ma/(g-a)

  • Option C

    ma/(g+a)

  • Option D

    ma/(g-a)

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• MCQmediumRotational Motionquestion based on pure rotation about fixed axis

  A solid cylinder of mass 50 kg and radius 0.5 m is mounted about its horizontal axis. A string is wrapped around it. What tension produces angular acceleration 2 revolutions/s²?

  Options

  • Option A

    25 N

  • Option B

    50 N

  • Option C

    78.5 N

  • Option D

    157 N

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• MCQmediumKinematics part-2 Projectile MotionMotion in 2-D and ground to ground projectile

  A projectile is fired from the surface of the Earth with speed 5 m s⁻¹ at an angle δ with the horizontal. Another projectile fired from another planet with speed 3 m s⁻¹ at the same angle follows an identical trajectory. If g=9.8 m s⁻² on Earth, the acceleration due to gravity on the planet is:

  Options

  • Option A

    3.5 m s⁻²

  • Option B

    5.9 m s⁻²

  • Option C

    16.3 m s⁻²

  • Option D

    110.8 m s⁻²

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• MCQmediumGravitationGravitation, Gravitational Field & Potential Energy

  Which graph correctly shows how the magnitude of Earth’s gravitational field intensity E varies with distance r from Earth’s centre (uniform density approximation)?

  Options

  • Option A

    
  • Option B

    
  • Option C

    
  • Option D

    

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• MCQeasyRotational Motionrolling on inclined surface

  Find the ratio of acceleration of a solid sphere rolling without slipping down incline angle θ to that of the same sphere slipping down the frictionless incline without rotation.

  Options

  • Option A

    5:7

  • Option B

    2:3

  • Option C

    2:5

  • Option D

    7:5

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• MCQmediumKinematics part-2 Projectile MotionMotion in 2-D and ground to ground projectile

  A particle is moving such that its position coordinates (x,y) are (2 m, 3 m) at t=0, (6 m, 7 m) at t=2 s and (13 m, 14 m) at t=5 s. The average velocity vector from t=0 to t=5 s is:

  Options

  • Option A

    (1/5)(13$\hat{i}+13\hat{j}$)

  • Option B

    (7/3)($\hat{i}+\hat{j}$)

  • Option C

    2$\left(\hat{i}\hat{+\hat{j}}\right)$

  • Option D

    (11/5)($\hat{i}+\hat{j}$)

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