Transmission Of Heat Question 162
Question: Which of the prism is used to see infra-red spectrum of light
[RPMT 2000]
Options:
A) Rock-salt
B) Nicol
C) Flint
D) Crown
Show Answer
Answer:
Correct Answer: A
Solution:
Ordinary glass prism (crown, flint) absorbs the infrared radiation but rock salt prism transmit them. Hence it is used to obtain the spectrum of infrared radiation.
BETA
