JEE Main 2017Session, Shift 1PhysicsMediumOptics190× since 2002
In a Young’s double slit experiment, slits are separated by 0.5 mm, and the screen is placed 150 cm away.
A beam of light consisting of two wavelengths, 650 nm and 520 nm, is used to obtain interference fringes
on the screen. The least distance from the common central maximum to the point where the bright fringes
due to both the wavelengths coincide is