AIPMT 2004 physics questions with solutions

Showing 1–10 of 14 questions

• MCQmediumGravitationAcceleration Due to Gravity & Escape Velocity

  A new planet has twice Earth’s mean density but the same surface acceleration due to gravity. If Earth has radius R, the new planet’s radius is:

  Options

  • Option A

    2R

  • Option B

    4R

  • Option C

    R/4

  • Option D

    R/2

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• MCQmediumRotational Motionmoment of inertia and kinetic energy in pure rotation

  Three particles each of mass m lie at the vertices of an equilateral triangle ABC of side ℓ. Find the moment of inertia about the in-plane axis AX through A, perpendicular to AB, shown.

  

  Options

  • Option A

    3mℓ²/4

  • Option B

    2mℓ²

  • Option C

    5mℓ²/4

  • Option D

    3mℓ²/2

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• MCQmediumWork , Power and Energyconservation of mechanical energy

  A 0.5 kg mass moving horizontally at 1.5 m s⁻¹ hits a spring of constant k=50 N m⁻¹ on a smooth surface. Maximum compression is:

  

  Options

  • Option A

    0.15 m

  • Option B

    0.12 m

  • Option C

    1.5 m

  • Option D

    0.5 m

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• MCQmediumWork , Power and Energykinetic energy and work energy theorem

  Two particles of masses m₁>m₂ move with the same momentum but different kinetic energies E₁ and E₂. Which statement is true?

  Options

  • Option A

    E₁ < E₂

  • Option B

    E₁/E₂ = m₁/m₂

  • Option C

    E₁ > E₂

  • Option D

    E₁ = E₂

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• MCQmediumNewtons law of motion and FrictionPseudo force related problem

  A block of mass m rests on a smooth incline of angle θ carried by a wedge accelerated horizontally so the block does not slip. Find the normal force exerted by the wedge on the block.

  Options

  • Option A

    mg cosθ

  • Option B

    mg sinθ

  • Option C

    mg

  • Option D

    mg/cosθ

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• MCQmediumRotational Motionquestion based on pure rotation about fixed axis

  A wheel of moment of inertia 2 kg·m² rotates at 60 rpm. What constant braking torque brings it to rest in 1 minute?

  Options

  • Option A

    2π/15 N·m

  • Option B

    π/12 N·m

  • Option C

    π/15 N·m

  • Option D

    π/18 N·m

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  A 2 kg block A lies on a table. Coefficient of static friction between block and table is 0.2. A rope over a smooth pulley connects it to hanging mass B. Find the largest mass of B for which neither block moves (g=10 m s⁻²).

  

  Options

  • Option A

    2.0 kg

  • Option B

    4.0 kg

  • Option C

    0.2 kg

  • Option D

    0.4 kg

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• MCQmediumRotational Motionmoment of inertia and kinetic energy in pure rotation

  Find the ratio of radii of gyration about tangential axes in their planes for a uniform disc and a thin ring of equal mass and radius.

  Options

  • Option A

    2:3

  • Option B

    2:1

  • Option C

    √5:√6

  • Option D

    1:√2

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• MCQmediumNewtons law of motion and Frictionspring related problem

  Two springs of constants k₁ and k₂ are connected in series. Their equivalent spring constant is:

  Options

  • Option A

    √(k₁k₂)

  • Option B

    (k₁+k₂)/2

  • Option C

    k₁+k₂

  • Option D

    k₁k₂/(k₁+k₂)

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• MCQeasyRotational Motionangular impulse in pure rotation and rotational collision

  Disc I₁ rotates at angular speed ω. A second disc I₂ is laid coaxially on it at rest; they eventually rotate together. Find the combined angular speed.

  Options

  • Option A

    ω

  • Option B

    I₁ω/(I₁+I₂)

  • Option C

    (I₁+I₂)ω/I₁

  • Option D

    I₂ω/(I₁+I₂)

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