In Young's double slit experiment the separation d between

Last updated: 7/31/2022

In Young's double slit experiment the separation d between the slits is 2mm, the wavelength of light used is 5896A and distance D between the screen and slits is 100 cm. It is found that the angular width of the fringes is 0.20°. To increase the angular fringe width to 0.21° (with same > and D) the separation between the slits needs to be changed to.