A beam of light having a wavelength of 488 nm is shone on the two slits and an interference pattern is observed.The angular separation between the central maximum and the adjacent maximum is 9.94 * 10^-4 rad.What is the distance between the two slits?

Question

Quizplus · Accepted Answer

The distance between the two slits can be found using the formula:

d = λD/θ

where λ is the wavelength of the light, D is the distance between the slits and the screen, and θ is the angular separation between the central maximum and the adjacent maximum.

Substituting the given values, we get:

d = (488 nm)(1 m)/(9.94 x 10^-4 rad) = 4.91 x 10^-6 m = 4.91 x 10^-3 mm

Therefore, the best choice is (B) 4.91 x 10^-6 m.

A Beam of Light Having a Wavelength of 488 Nm