AIPMT Screening 2008 physics questions with solutions

Showing 1–10 of 10 questions

• MCQmediumRotational Motionmoment of inertia and kinetic energy in pure rotation

  A thin rod of total mass M and length L is bent at its midpoint into two perpendicular halves. Find its moment of inertia about an axis through the bend and normal to their plane.

  Options

  • Option A

    ML²/24

  • Option B

    ML²/12

  • Option C

    ML²/6

  • Option D

    √2 ML²/24

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• MCQeasyKinematics Part-1 (one dimension)Ghraphical problem of kinematics

  A particle shows the distance–time curve shown in the figure. The maximum instantaneous velocity of the particle is around the point:

  

  Options

  • Option A

    B

  • Option B

    C

  • Option C

    D

  • Option D

    A

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• MCQeasyRotational Motionmoment of inertia and kinetic energy in pure rotation

  Find the ratio of radii of gyration of a thin disc and a thin ring of equal mass and radius, each about its centre-normal axis.

  Options

  • Option A

    √3:√2

  • Option B

    1:√2

  • Option C

    √2:1

  • Option D

    √2:√3

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• MCQmediumWork , Power and EnergyPower

  Water falls 60 m at a mass flow rate of 15 kg s⁻¹ through a turbine. Friction losses are 10% of input energy. Find power generated (g=10 m s⁻²).

  Options

  • Option A

    10.2 kW

  • Option B

    8.1 kW

  • Option C

    12.3 kW

  • Option D

    7.0 kW

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

  The distance travelled by a particle starting from rest and moving with an acceleration 4/3 m s⁻², in the third second is:

  Options

  • Option A

    6 m

  • Option B

    4 m

  • Option C

    10/3 m

  • Option D

    19/3 m

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

  A particle of mass m is projected from level ground at speed v and angle 45° above horizontal. Find the magnitude of change in its momentum when it lands at the same level.

  Options

  • Option A

    2mv

  • Option B

    mv/√2

  • Option C

    mv√2

  • Option D

    zero

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• MCQmediumUnit dimension and errorDimension and its application

  Which two of the following five physical parameters have the same dimensions? (1) Energy density (2) Refractive index (3) Dielectric constant (4) Young's modulus (5) Magnetic field

  Options

  • Option A

    2 and 4

  • Option B

    3 and 5

  • Option C

    1 and 4

  • Option D

    1 and 5

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

  Sand falls onto a conveyor belt at mass rate M kg s⁻¹. Find the horizontal force necessary to keep the belt moving steadily at speed v m s⁻¹.

  Options

  • Option A

    Mv N

  • Option B

    2Mv N

  • Option C

    (Mv/v²) N

  • Option D

    zero

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• MCQmediumCircular Motioncentripital force and centrifugal force

  A roller coaster reaches the top of a hill of radius of curvature 20 m. Riders experience weightlessness. With g≈9.8 m/s², the car speed lies between:

  Options

  • Option A

    14 and 15 m/s

  • Option B

    15 and 16 m/s

  • Option C

    16 and 17 m/s

  • Option D

    13 and 14 m/s

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• MCQeasyUnit dimension and errorError and its addition ,subtraction,multiplication and division

  If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be:

  Options

  • Option A

    4%

  • Option B

    6%

  • Option C

    8%

  • Option D

    2%

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