A) \[{{55}^{o}}C;\alpha =1.85\times {{10}^{-2}}{{/}^{o}}C\]
B) \[{{25}^{o}}C;\alpha =1.85\times {{10}^{-5}}{{/}^{o}}C\]
C) \[{{60}^{o}}C;\alpha =1.85\times {{10}^{-4}}{{/}^{o}}C\]
D) \[{{30}^{o}}C;\alpha =1.85\times {{10}^{-3}}{{/}^{o}}C\]
Correct Answer: B
Solution :
[b] |
When clock gain 12 sec |
...(1) |
When clock lose 4 sec. |
...(2) |
From equation (1) & (2) |
from equation (1) |
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