The face angles of a Nicol prism is:
A. 60° and 118°
B. 60° and 120°
C. 130° and 50°
D. 72° and 108°
Answer:D
The face angles of a Nicol prism is:
A. 60° and 118° B. 60° and 120° C. 130° and 50° D. 72° and 108°