A disc of uniform thickness and radius 50 cm is made of two zones. The central zone of radius 20.0 cm is made of metal and has a mass of 4.00 kg The outer zone is of wood and has a mass of 3.00 kg. The M.I. of the disc nbout a transverse axis through its centre is

Options

A. `0.510"kg -m"^(2)`
B. `0.515"kg -m"^(2)`
C. `0.500"kg -m"^(2)`
D. `0.525"kg -m"^(2)`

Answer

B