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Question

A clock, with a brass pendulum, keeps correct time at $$20^0C$$, but loses $$8.212 s$$ per day, when the temperature rises to $$30^C$$. Calculate the coefficient of linear expansion of brass:


A
90×106
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B
19×106
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C
9×106
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D
1×106
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Solution

The correct option is B $$19\times 10^-6$$

2008940_1091859_ans_198f0777f7e343098b2b6fa6dfe0907b.jpg

Physics

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