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What is the angular velocity in rad s^(-...

What is the angular velocity in rad `s^(-1)` of the hour minute and second hand of a clock ?

A

`(pi)/(21600) rads^(-1)`

B

`(pi)/(1800) rad s^(-1)`

C

`(pi)/(43200) rad s^(-1)`

D

`(pi)/(30 ) rad S^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
For the hour hard ,`T=12 h`
` therefore omega = (2pi) /(T) =(2pi)/(12) rad //"hour "`
`=(2pi ) /( 12xx60xx60)=(pi)/(21600) rad //s`
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