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EAMCET Engineering 2009 Solved Paper

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Question : 12

Total: 160

A clock pendulum made of invar has a period of 0.5 s, at 20∘C. If the clock is used in a climate where the temperature averages to 30∘C, how much time does the clock lose in each oscillation? (For invar, α=9×10−7∕‌∘C, g= constant)

2.25×10−6 s
2.5×10−7 s
5×10−7 s
1.125×10−6 s

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