AIPMT 1989 physics questions with solutions

Showing 1–8 of 8 questions

• MCQmediumWork , Power and Energykinetic energy and work energy theorem

  A 10 g bullet leaves a rifle at speed 1000 m s⁻¹ and strikes Earth at the same level at speed 500 m s⁻¹. Find the magnitude of work needed to overcome air resistance.

  Options

  • Option A

    375 J

  • Option B

    3750 J

  • Option C

    5000 J

  • Option D

    500 J

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  AIPMT 1989NEET

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• MCQmediumGravitationAcceleration Due to Gravity & Escape Velocity

  A satellite has escape speed 11 km s⁻¹. If launched at angle 60° to the vertical, what escape speed is required?

  Options

  • Option A

    11 km s⁻¹

  • Option B

    11√3 km s⁻¹

  • Option C

    11/√3 km s⁻¹

  • Option D

    33 km s⁻¹

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• MCQeasyMathematical tools and vector

  If θ is the angle between A and B, find the scalar triple product (A×B)·A.

  Options

  • Option A

    BA²sinθ

  • Option B

    BA²cosθ

  • Option C

    BA²sinθcosθ

  • Option D

    zero

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  AIPMT 2005AIPMT 1989NEET

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• MCQeasyKinematics Part-1 (one dimension)Motion under gravity

  What will be the ratio of the distance moved by a freely falling body from rest in the 4th and 5th second of journey?

  Options

  • Option A

    4 : 5

  • Option B

    7 : 9

  • Option C

    16 : 25

  • Option D

    1 : 1

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

  A 5 kg body initially at rest explodes into three fragments whose masses are in ratio 1:1:3. Equal-mass fragments move in perpendicular directions, each at 21 m s⁻¹. Find the speed of the largest fragment.

  Options

  • Option A

    7√2 m s⁻¹

  • Option B

    5√2 m s⁻¹

  • Option C

    3√2 m s⁻¹

  • Option D

    √2 m s⁻¹

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• MCQmediumRotational Motionquestin based on instantaneous axis of rotation and Toppling

  At any instant a rolling wheel can be considered in pure rotation about the instantaneous contact point. The instantaneous rotation axis translates forward at what speed?

  Options

  • Option A

    the centre-of-mass speed

  • Option B

    zero

  • Option C

    twice the centre-of-mass speed

  • Option D

    none of these

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• MCQmediumGravitationGravitation, Gravitational Field & Potential Energy

  If the gravitational force between two bodies were proportional to 1/R instead of 1/R², how would the orbital speed v of a particle in a circular orbit vary with radius R?

  Options

  • Option A

    R

  • Option B

    R⁰ (independent of R)

  • Option C

    1/R²

  • Option D

    1/R

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  AIPMT 1994AIPMT 1989NEET

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• MCQeasyUnit dimension and errorDimensional Analysis

  If x = at + bt², where x is the distance travelled by the body in kilometer and t is the time in second, then the unit of b is:

  Options

  • Option A

    km/s

  • Option B

    km-s

  • Option C

    km/s²

  • Option D

    km-s²

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