Question

State whether given statement is True or False
In Young's double slit experiment, the two coherent sources are real.

• A. True
• B. False

Answer 1

The correct option is B False

False.
Young's double slit experiment was done to demonstrate interference. The essential and the most sufficient condition for interference is that there must be a constant phase difference between the two waves emitted by the two sources (real or virtual). Such sources, having a constant phase difference and same frequency, are called coherent sources. Therefore, the sources used should be coherent, real or virtual does not matter.