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An L-shaped object, made of thin rods of...

An L-shaped object, made of thin rods of uniform mass density, is suspended with a string as shown in figure. If AB=BD, and the angle made by AB with downward vertical is `theta`, then :
a) tanθ=1/2√3 b) tanθ=1/2 c) tanθ=2/√3 d) tanθ=1/3

A

a) `tantheta=(1)/(2sqrt(3))`

B

b) `tantheta=(1)/(2)`

C

c) `tantheta=(2)/(sqrt(3))`

D

d) `tantheta=(1)/(3)`

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