Which of the following phenomenon occur when the waves originate from each line source in the optical grating?
A
Interference
B
Magnetic flux
C
Refraction
D
Reflection
Answer:
The correct option is A. Interference
Note
Interference occurs between the waves when they originate from each line source. In certain directions, adjacent beams are in phase with each other and constructive interference occurs to give a resultant diffracted beam in that direction.