Optics Question 171
Question: Light is incident normally on a diffraction grating through which the first order diffraction is seen at 32o. The second order diffraction will be seen at
Options:
A) 48o
B) 64o
C) 80o
D) There is no second order diffraction in this case
Show Answer
Answer:
Correct Answer: D
Solution:
For a grating
where
This is more than 0.5. Now
