In an interference experiment, 3rd bright fringe is obtained on the screen with a light of 700 nm. What should be the wavelength of light source in order to obtain 5th bright fringe at the same point -
beam of light consisting of two wavelengths, 650 nm and 520 nm, is
used to obtain interference fringes in a Young’s double-slit
the distance of the third bright fringe on the screen from the
central maximum for wavelength 650 nm.
is the least distance from the central maximum where the bright
fringes due to both the wavelengths coincide?