RMS stands for......

Answer

A, B, D

Explanation

(A) Perpendicular axes theorem is not applicable for 3D objects. Hence, option (A) is false
(B) Distance between Z. and `Z=a(sqrt(2))/(2)=(a)/(sqrt(2))`
According to parallel axes theorem,
`I_(z.)=I_(z)+m((a)/(sqrt(2)))^(2)=I_(z)+(ma^(2))/(2)`
Option (B) is true.
(C) Z.. is not parallel to Z. Thus, option (C ) is false.
(D) As x and y-axes are symmetrical.
Hence, `I_(x)=I_(y)`
Option (D) is true.