Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:
Two sources of light are said to be coherent when both give out light waves of the same:
Options:
amplitude and phase
intensity and wavelength
speed
wavelength and a constant phase difference
Correct Answer:
wavelength and a constant phase difference
Explanation:
Definition of coherent sources : The source which emits a light wave with the same frequency, wavelength and phase or having a constant phase difference is known as a coherent source.