State the importance of coherent sources in the phenomenon of interference. In Young's double slit expet-ment to produce interference pattern obtain the conditions for constructive and destructive interference. Hence deduce the expression for the fringe width. How does the firinge width get affected, if the entire experimental apparatus of Young's is immersed in water ?
What are coherent sources ? Define interfernece of light. Obtain the condition for constructive and destructive interference of light .
Destructive Interference
Constructive Interference
Two waves of intensities I and 4I produce interference. Then the intensity at constructive and destructive interference respectively is –
Write the relationship between the path difference and the wavelength of light used for constructive and destructive interference of light.
In experimental set up of interference the twol interfering sources S_(1) and S_(2) have an initial phase difference corresponding to a path difference of lambda//4 . The phase difference due to path difference between the twoll interfering waves at a point of constructive and destructive interference respectively is
