Draw the intensity patten for single slit diffraction and double slit interference. Hence ,
state two differences between interference and diffraction patterns.

In a single slit diffraction pattern

Write two points of difference between interference and diffraction pattern of light.

The main difference in the phenomenon of interference and diffraction is that

Width of slit in a single slit diffraction experiment such that 20 maxima of double slit interference pattern are obtained within central maxima of the diffraction pattern is ( Slit separation for double slit arrangement =2mm)

A : In double slit experiment, the pattern on the screen is actually a superposition of sngle-slit diffraction from each slit and the double -slit interference pattern. R : The diffraction pattern has a central bright maximum which is twice as wide as the other maxima.

In a double slit interference pattern, the first maxima for infrared light would be

In Young's double slit experiment the type of diffractive is

In a singleslit diffraction experiment, when a tiny circular obstacle is placed in the path of light from a distant source, a bright spot is seen at the centre of the shadow of the obstacle. Explain why ? State two points of difference the interference pattern obtained in Young's double slit experiment and the diffraction pattern due to a single slit.

Central fringe obtained in diffraction pattern due to a single slit-