Find the distance between adjacent dark spots from a double slit diffraction pattern if the wavelength of light is 500 nm, the distance between the slits is 1 mm, and the distance from the slit to the screen is 2 m.

0.001 m or 1 mm

Explanation:

Parameters given:

Wavelength of light, λ = 500 nm =

Distance between slits, d = 1 mm = 0.001 m

Distance between slit and screen, x = 2 m

The distance between two adjacent dark spots on a screen due to diffraction of light is given as:

y = xλ/d

Therefore:

y = 0.001 m = 1 mm

Adjacent dark spots are separated by a distance of 1mm.

i don't know that i agree with that but what's the question ?