Question

In a Young's double slit experiment the spacing between the slits is 0.3 mm and the screen is kept at a distance of 1.5 m. The second bright fringe is found 6 mm from the central fringe. The wavelength of the light used in the experiment is

(a) 625 nm

(b) 600 nm

(c) 550 nm

(d) 500 nm

Answer 1

The correct option is (b) 600 nm.