Ratio of angular speeds of minute hand and hour hand of a watch is

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3-2.Motion in Plane

easy

The ratio of angular speeds of minute hand and hour hand of a watch is

A

$1\,\,:\,\,12$

B

$6\,\,:\,\,1$

C

$12\,\,:\,\,1$

D

$1\,\,:\,\,6$

Solution

Angular velocity is –

$\omega_{\text {minute }}=1$ $round/hr$ and $\omega_{\text {hour }}=\frac{1}{12}$ $round/hr$

$\frac{\omega_{\text {minute }}}{\omega_{\text {hour }}}=\frac{1}{\frac{1}{12}}=\frac{12}{1}$

Standard 11

Physics

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