Question 175: Wave Optics

Question

To demonstrate the phenomenon of interference, we require two sources which emit radiation

Accepted Answer

To observe the phenomenon of interference, you need two sources that emit radiation of the same frequency and have a definite phase relationship. This is because interference is a result of the superposition of waves, which requires the waves to be coherent. Coherence is achieved when the waves have a constant phase difference, which implies that they are of the same frequency and have a definite phase relationship (a phase relationship that does not change with time).
So, the correct answer is :
Option D : of the same frequency and having a definite phase relationship.

Answer

of nearly the same frequency

Answer

of the same frequency

Answer

of different wavelengths

Answer

of the same frequency and having a definite phase relationship

Wave Optics

To demonstrate the phenomenon of interference, we require two sources which emit radiation

Choose the correct answer: