A double slit of separation 0.1 mm is illuminated by white light. A coloured interference pattern
Channel: Doubtnut
Date: 05/07/2020

A double slit of separation 0.1 mm is illuminated by white light. A coloured interference pattern is formed on a screen 100 cm away. If a pin hole is located in this screen at a distance of 2 mm from the central fringe, the wavelength in the visible spectrum (4000 Å to 7000Å) which will be absent in the light transmitted through the pin hole is (are)