AIPMT Mains 2012 physics questions with solutions

Showing 1–8 of 8 questions

• MCQmediumGravitationGravitation, Gravitational Field & Potential Energy

  Which plot represents gravitational field magnitude versus distance r due to a thin spherical shell of radius R (distance measured from the shell’s centre)?

  Options

  • Option A

    
  • Option B

    
  • Option C

    
  • Option D

    

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• MCQeasyCenter of maas , Momentum and Collisioncenter of mass and question based on it

  Three masses lie on the x-axis: 300 g at the origin, 500 g at x=40 cm and 400 g at x=70 cm. Find the centre-of-mass distance from the origin.

  Options

  • Option A

    40 cm

  • Option B

    45 cm

  • Option C

    50 cm

  • Option D

    30 cm

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

  A stone falls from rest through height h and strikes the ground with momentum p. If dropped from a height 100% greater, by what percentage will the striking momentum change?

  Options

  • Option A

    68%

  • Option B

    41%

  • Option C

    200%

  • Option D

    100%

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• MCQmediumGravitationSatellites, Orbital Motion & Kepler’s Laws

  If vₑ is escape speed and vₒ is orbital speed for a circular orbit just above Earth’s surface, how are they related?

  Options

  • Option A

    vₒ=√2 vₑ

  • Option B

    vₒ=vₑ

  • Option C

    vₑ=2vₒ

  • Option D

    vₑ=√2 vₒ

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• MCQeasyRotational Motionmoment of inertia and kinetic energy in pure rotation

  About which shown point is moment of inertia of a uniform circular disc largest for an axis perpendicular to the disc: B on rim, C inside, D inside, or A at centre?

  

  Options

  • Option A

    B

  • Option B

    C

  • Option C

    D

  • Option D

    A

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• MCQmediumUnit dimension and errorDimension and its application

  The dimensions of (μ₀ε₀)⁻¹ᐟ² are:

  Options

  • Option A

    [L¹ᐟ² T⁻¹ᐟ²]

  • Option B

    [L⁻¹ T]

  • Option C

    [L T⁻¹]

  • Option D

    [L¹ᐟ² T¹ᐟ²]

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• MCQeasyCircular Motionfriction and circular motion

  A car of mass m moves on a level circular track of radius R. If μₛ is coefficient of static friction between tyres and road, what is maximum speed without skidding?

  Options

  • Option A

    √(μₛmRg)

  • Option B

    √(Rg/μₛ)

  • Option C

    √(mRg/μₛ)

  • Option D

    √(μₛRg)

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

  A mass m moves at speed v along +x and sticks to a mass 3m moving at speed 2v along +y. Determine velocity of the combined mass.

  Options

  • Option A

    (v/4)î+(3v/2)ĵ

  • Option B

    (v/3)î+(2v/3)ĵ

  • Option C

    (2v/3)î+(v/3)ĵ

  • Option D

    (3v/2)î+(v/4)ĵ

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