1.

The angular speed of seconds needle in a mechanical watch is [RPMT 1999; CPMT 1997; MH CET 2000, 01; BHU 2000]

A. \[\frac{\pi }{30}\]rad/s
B. \[2\pi \]rad/s
C. \[\pi \]rad/s
D. \[\frac{60}{\pi }\]rad/s
Answer» B. \[2\pi \]rad/s


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