A) \[t={{t}_{0}}\]
B) \[t={{t}_{0}}/2\]
C) \[t=2{{t}_{0}}\]
D) \[t=4{{t}_{0}}\]
Correct Answer: C
Solution :
[c] The time period of simple pendulum in air |
.(i) |
being the length of simple pendulum. |
In water, effective weight of bob |
weight of bob in air upthrust |
wheredensity of bob, |
density of water. |
..(ii) |
Thus, |
[dividing Eq. (ii) by Eq. (i)] |
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