A metal cube of side length 8.0cm has its upper surface displaced with· respect to the bottom by 0.10 mm when tangential force of 4 xx 10^(4) N is applied at the top with bottom surface fixed. The rigidity modulus of the material of the cube is

A metal cube of side length 8.0cm has its upper surface displaced with

1.	A metal cube of side length 8.0cm has its upper surface displaced with· respect to the bottom by 0.10 mm when tangential force of 4 xx 10^(4) N is applied at the top with bottom surface fixed. The rigidity modulus of the material of the cube is
Answer» `4 XX 10^(9) NM^(-2)` `5 xx 10^(9) Nm^(-2)` `8 xx 10^(9) Nm^(-2)` `10^(8) Nm^(-2)` Answer :B