Question

The distance between the slits in young's double slit experiment is 0.25 cm interference fringes gre formed on a
screen placed at a distance of 100 cm from the slits. The distance of the third dark fringe from the central bright
fringe is 0.059 cm. Find the wavelength of the incident light.
(a) 200nm
(b) 400nm
(c) 590nm
(d) none of these​

Answer 1

Answer:

Option c............. .......