A square frame, made of `4` equal rods of length `l`, mass `m` each is hinged at corner `A` so that it can rotate about a horizontal axis paralle to line `DB` as shown. It is slightly disturbed and it starts falling about hinge axis. Calculate following parameters when the frame is completely inverted and point `C` reached the lower point of its motion.

Angular velocity of frame :

Options

A. `sqrt(3 sqrt(2) (g)/(l))`
B. `sqrt((3g)/(l))`
C. `sqrt((3)/(sqrt(2)) (g)/(l))`
D. `sqrt((6 g)/(l))`

Answer

A