define cohrent source discuss why independent source of light of same wavelength can not show interfrence
Answers
Answer:
In practice, a sustained interference pattern cannot be obtained by using two independent sources of light. It is because of the following reasons: Two independent sources of light can't emit waves continuously. The waves emitted by two independent sources of light do not have same phase or a constant phase difference
Answer:
A coherent source is a source of light that provides light of the same frequency and a constant phase difference.
Explanation:
From a coherent source of light, we get light rays of the same frequency, wavelength, and amplitude. The phase difference between these rays will be either zero or a constant.
Interference is the phenomenon of the superposition of two or more light waves from a coherent source. That is the light rays that are superimposing should have the same frequency and phase difference to produce an interference pattern.
An independent light source cannot produce coherent waves and hence they cannot show interference.