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Time period of small oscillation (in a v...

Time period of small oscillation (in a verical plane normal to the plane of strings) of the bob in the arrangement shown will be

A

(a)`2pisqrt((l)/(g))`

B

(b)`2pisqrt((l)/(sqrt(2)g))`

C

(c)`2pisqrt(sqrt(2l)/(g))`

D

(d)`2pisqrt((2l)/(g))`

Text Solution

Verified by Experts

The correct Answer is:
B

`T = 2pisqrt((l')/(g))` where `l' = ((l)/(sqrt(2)))` so `T = sqrt((l)/(sqrt(2)g))`
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