Question

A crystal has coefficient of linear
expansion 10 x 10-7/°C in one
direction and 220 x 10-7/°C in every
direction at right angles to it. Then
coefficient of cubical expansion of that
material is
(A) 45 x 104/°C
(B) 45 x 10-6/°C
(C) 45 x 10-5/°C
(D) 45 x 10-3/°C​

Answer 1

Answer:

b is ur answer mate. ........

Answer 2

Answer (c)

45*10-3/degrees C