Centre of mass of two unifrom rods of same length but made up of different materials & kept as shown, if the meeting point is the origin of co-ordinates :-

Options

A. `(L//2, L//2)`
B. `(2L//3, L//2)`
C. `(L//3, L//3)`
D. `(L//3, L//6)`

Answer

D

Explanation

Equation of line joining the CM of two rods
`(x)/(L//2) + (y)/(L//2) = 1`
coordinate `((L)/(3),(L)/(6))` satisfies this equation.