Question
Question: Two identical light sources S<sub>1</sub> and S<sub>2</sub> emit light of same wavelength λ. These l...
Two identical light sources S1 and S2 emit light of same wavelength λ. These light rays will exhibit interference if.
A
Their phase differences remain constant
B
Their phases are distributed randomly
C
Their light intensities remain constant
D
Their light intensities change randomly
Answer
Their phase differences remain constant
Explanation
Solution
For interference phase difference must be constant.