AIPMT Mains 2008 physics questions with solutions

Showing 1–4 of 4 questions

• MCQmediumWork , Power and Energykinetic energy and work energy theorem

  A 10 kg body dropped from a height of 20 m reaches speed 10 m s⁻¹ after falling 20 m. Find work done by air on the body. Take g=10 m s⁻².

  Options

  • Option A

    1456 J

  • Option B

    1500 J

  • Option C

    -1500 J

  • Option D

    -1456 J

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• MCQmediumKinematics Part-1 (one dimension)Motion under constant acceleration

  Two particles move with initial speeds of 4 m s⁻¹ and 2 m s⁻¹ and their accelerations are 1 m s⁻² and 2 m s⁻² respectively. If both reach the final position in the same time, then the length of path travelled is:

  Options

  • Option A

    12 m

  • Option B

    24 m

  • Option C

    36 m

  • Option D

    48 m

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• MCQmediumWork , Power and Energyconservative force and potential energy

  A uniform chain of mass M and length L rests on a table with length L/n hanging over its edge. Find work required to pull the hanging part onto the table.

  Options

  • Option A

    MgL/(2n²)

  • Option B

    MgL/n²

  • Option C

    MgL/(2n)

  • Option D

    MgL/n

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• MCQmediumUnit dimension and errorDimensional Analysis

  In Van der Waals' gas equation [P + a/V²][V - b] = RT, the dimensions of Van der Waals constant a are:

  Options

  • Option A

    [M L⁵ T⁻²]

  • Option B

    [M L⁻⁵ T⁻²]

  • Option C

    [M L⁵ T²]

  • Option D

    [M⁻¹ L⁻⁵ T⁻²]

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