Optics Question 838
Question: Huygen’s concept of secondary wave
Options:
A) allows us to find the focal length of a thick lens
B) is a geometrical method to find a wave front
C) is used to determine the velocity of light
D) is used to explain polarization
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Huygen’s principle gives us a geometrical method of tracing a wave front.