Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 8

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The second's hand of a watch has length $6 cm$ . Speed of end point and magnitude of difference of velocities at two perpendicular positions will be :

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Important Questions on Circular Motion

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 9

An aeroplane revolves in a circle above the surface of the earth at a fixed height with speed

100 km {(hr)}^{- 1}

. The change in velocity after completing

\frac{1}{2}

revolution will be,

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 10

A particle moving on a circular path travels the first one-third part of circumference in

2 s

and the next one-third part in

1 s

. Average angular velocity of the particle

(

in

rad s^{- 1}

)

is

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 11

A grind stone starts revolving from rest. If its angular acceleration is

4.0 rad \sec^{- 2}

(uniform), then after

4 \sec

, what is its angular displacement and angular velocity, respectively?

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 12

The angular displacement of any particle is given,

θ = ω_{0} t + \frac{1}{2} α t^{2}

where,

ω_{0}

and

α

are constant if

ω_{0} = 1 rad s^{- 1}, α = 1.5 rad s^{- 2}

, then in

t = 2 s

, the angular velocity will be (in

rad s^{- 1}

),

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 13

A particle of mass

M

is revolving along a circle of radius

R

and another particle of mass

m

is revolving in a circle of radius

r

. If the time periods of both particles are same, then the ratio of their angular velocities is,

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 14

In a uniform circular motion,

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 15

Which of the following statements is false for a particle moving in a circle with a constant angular speed?

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 16

A particle is acted upon by a force of constant magnitude, which is always perpendicular to the velocity of the particle the motion of the particle takes place in a plane. It follows that: