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Question

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

A
1:12
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B
60:1
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C
12:1
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D
1:60
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Solution

The correct option is B 60:1
We know that, a second hand takes 1 min for one complete cycle and the minute hands takes 60 min for one complete cycle, and we know,
ω=2×πT
So, ωmin=2π60radmin ωsec=2π1radminωsecωmin=2π12π60=60:1
Hence option (b) is the correct answer.

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