Explain when difracted rays may have constructive and destructive interference,

Explain the Reflected ray

(i) In Young's double slit experiment the condition for (a) constructive and (b ) destructive interference at a point on the screen .

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 ?

STATEMENT-1 : Beats will be heard if a tuning fork is sounded along with a sonometer wire with the same fundamental frequency as the tuning fork because STATEMENT -2 : Beats are caused by alternate constructive and destructive interference between two sounds.

State the necessary conditions for the constructive and the destructive interference.

When a light wave passes from a rarer medium to a denser medium, there will be a phase change of pi radians. This difference brings change in the conditions for constructive and destructive interference. This phenomena also reasons the fromation of interference pattern in thin films like, oily layer, soap film, etc., but has no reason on the shifting of fringes from the central portion outward. The shift is dependent on the refractive index of the material as per the relation, Delta y = (mu - 1) t The condition for constructive interference in Lloyd's single mirror experiment is the path difference which is equal to

How should two waves superpose each other such that there is (i) constructive interference and (ii) destructive interference.

What is the path difference of destructive interference

Then A may have :

Answer the following: (a) In Young's double slit experiment, derive the condition for (i) constructive interference and (ii) destructive interference at a point on the screen. (b) A beam of light consisting of two wavelengths, 800 nm and 600 nm is used to obtain the interference fringes in a Young's double slit experiment on a screen placed 1.4 m away. If the two slits are separated by 0.28 mm, calculate the least distance from the central bright maximum where the bright fringes of the two wavelengths coincide.