A clock which keeps correct time at 20^{\circ} {\C}, is subjected to 40^{\circ} {\C}. If coefficient of linear expansion of the pendulum is 12 \times 10^{-6} \/{ }^{\circ} {\C}. How much will it gain or lose time ?

Correct Answer is : 10.3 s∕ day

EAMCET Engineering 2007 Solved Paper

Section: Physics

Question : 16 of 160

Marks: +1, -0

A clock which keeps correct time at 20∘C, is subjected to 40∘C. If coefficient of linear expansion of the pendulum is 12×10−6∕‌∘C. How much will it gain or lose time ?

10.3 s∕ day
20.6 s∕ day
5 s∕day
20‌min∕ day

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