Question

Select the WRONG statement.
(A) Smaller angle of prism is
recommended for greater angular
dispersion.
(B) Right agled isosceles glass prism is
commonly used for total internal
reflection.
(C) Angle of deviation is practically
constant for thin prisms.
(D) For emergent ray to be possible from​

Answer 1

The wrong statement is Right angled isosceles glass prism is  commonly used for total internal  reflection.

Option (B) is correct.

Explanation:

(A) Smaller angle of prism is  recommended for greater angular  dispersion.

(B) Right angled isosceles glass prism is  commonly used for total internal  reflection.

(C) Angle of deviation is practically  constant for thin prisms.

(D) For emergent ray to be possible from​

The wrong statement is Right angled isosceles glass prism is  commonly used for total internal  reflection.

Answer 2

smaller angle of prism is recommended for greater angular dispersion