AIPMT Screening 2012 physics questions with solutions

Showing 1–10 of 11 questions

• MCQeasyRotational Motionangular momentum in pure rotation and its conservation

  A point mass rotates in a plane about a fixed point. Its angular momentum is directed along:

  Options

  • Option A

    a line perpendicular to the plane of rotation

  • Option B

    a line at 45° to the plane

  • Option C

    the radius

  • Option D

    the tangent to the orbit

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• MCQmediumCircular Motionfriction and circular motion

  A 1000 kg car takes a frictionless banked circular curve of radius 90 m and banking angle 45°. Find speed using g=10 m s⁻².

  Options

  • Option A

    20 m s⁻¹

  • Option B

    30 m s⁻¹

  • Option C

    5 m s⁻¹

  • Option D

    10 m s⁻¹

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• MCQeasyCenter of maas , Momentum and Collisionvelocity and acceleration of center of mass,newton second law for system

  Two persons of masses 55 kg and 65 kg stand at opposite ends of a 3.0 m boat of mass 100 kg. The 55 kg person walks to the 65 kg person and sits beside him. The boat is on still water. The centre of mass of the whole system shifts by:

  Options

  • Option A

    3.0 m

  • Option B

    2.3 m

  • Option C

    zero

  • Option D

    0.75 m

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• MCQmediumGravitationAcceleration Due to Gravity & Escape Velocity

  A spherical planet has mass Mₚ and diameter Dₚ. What acceleration due to gravity does a freely falling particle experience near its surface?

  Options

  • Option A

    4GMₚ/Dₚ²

  • Option B

    GMₚm/Dₚ²

  • Option C

    GMₚ/Dₚ²

  • Option D

    4GMₚm/Dₚ²

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• MCQmediumCenter of maas , Momentum and Collisioncollision and types of collision

  Sphere A (mass m₁) is initially at rest; B (mass m₂) initially moves at speed v along +x. After collision B moves at speed v/2 along +y. The direction of A after collision makes what angle with the x-axis?

  Options

  • Option A

    same as the motion of B

  • Option B

    opposite to the motion of B

  • Option C

    tan⁻¹(1/2) below the +x-axis

  • Option D

    tan⁻¹(-1/2) to the +y-axis

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• MCQmediumWork , Power and Energyconservative force and potential energy

  The potential energy of a particle is U(r)=A/r²-B/r, where A, B>0. Find distance for stable equilibrium.

  Options

  • Option A

    B/(2A)

  • Option B

    2A/B

  • Option C

    A/B

  • Option D

    B/A

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• MCQmediumRotational Motiontorque and rotational equilibrium

  In the shown equilateral triangle ABC with centre O, forces F₁, F₂ and F₃ act along the directed sides AB, BC and AC. If net torque about O vanishes, find F₃.

  

  Options

  • Option A

    F₁+F₂

  • Option B

    F₁-F₂

  • Option C

    (F₁+F₂)/2

  • Option D

    2(F₁+F₂)

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• MCQmediumRotational Motioncombined translatory and rotatory motion ,Pure rolling motion

  A solid cylinder of mass 3 kg rolls at 4 m/s on a horizontal surface, compressing a spring of force constant 200 N/m. Find maximum compression.

  Options

  • Option A

    0.5 m

  • Option B

    0.6 m

  • Option C

    0.7 m

  • Option D

    0.2 m

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

  A particle has initial velocity (2i + 3j) and acceleration (0.3i + 0.2j). The magnitude of its velocity after 10 s is:

  Options

  • Option A

    9√2 units

  • Option B

    5√2 units

  • Option C

    5 units

  • Option D

    9 units

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• MCQmediumGravitationAcceleration Due to Gravity & Escape Velocity

  At what height above Earth’s surface does a body’s weight become 1/16 of its surface weight (Earth radius R)?

  Options

  • Option A

    5R

  • Option B

    15R

  • Option C

    3R

  • Option D

    4R

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