In uniform circular motion

Important Questions on Circular Motion

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 6

The angular velocity of the second's needle in watch is

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

The average acceleration vector for a particle having a uniform circular motion is

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

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

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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 $100 \mathrm{km} {\left(\mathrm{hr}\right)}^{-1}$. 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 $2 \mathrm{s}$ and the next one-third part in $1 \mathrm{s}$. Average angular velocity of the particle $($in $\mathrm{rad} {\mathrm{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 $4.0 \mathrm{rad} {\sec }^{-2}$ (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, $\theta ={\omega }_{0}t+\frac{1}{2}\alpha t^2$ where, ${\omega }_0$ and $\alpha$ are constant if ${\omega }_0=1 \mathrm{rad} {\mathrm{s}}^{-1}\text{,} \alpha =1.5 \mathrm{rad} {\mathrm{s}}^{-2}$, then in $t=2 \mathrm{s}$, the angular velocity will be (in $\mathrm{rad} {\mathrm{s}}^{-1}$),

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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,