In double slit experiment, the angular width of the fringes is `0.20^@` for the so
Channel: Doubtnut
Date: 2020-01-19

In double slit experiment, the angular width of the fringes is `0.20^@` for the sodium light `(lambda=5890�)`. In order to increase the angular width of the fringes by `10%`, the necessary change in the wavelength is