In a two slit experiment the third bright fringe away from the central fring eis observed at an angle of 8 if the wavelength of

Question

serg [7]

2 years ago

4

In a two slit experiment the third bright fringe away from the central fring eis observed at an angle of 8 if the wavelength of

the light is 490 nm what is the distance bewteen thetwo slits?

Physics

1 answer:

Olegator [25] · Answer 1 · 2023-12-02T06:43:55+03:00

The distance between two slit is 0.00149 mm, when In a two slit experiment the third bright fringe away from the central fringe is observed at an angle of 8 if the wavelength of the light is 490 nm.

<h2>Double slit experiment: what is it?</h2>

A light beam is directed at a wall that has two vertical slits in the double-slit experiment. The resulting pattern is captured on a photographic plate after the light has passed through the slits. A single line of light that is aligned with the open slit is visible when one slit is covered.

The equation provides the positions of the interference fringes:

In the case of bright interference fringes, they appear at d × siny = n × λand nth bright appear at d × siny = (n +1) × λ respectively.

<h2>calculating the separation of two slits:</h2>

In a double slit experiment, the prerequisite for constructive interference is: d × siny = n × λ

Where, number of the fringe (n) = 3

The wavelength of light (λ) = 490 nm = 4.90 × $10^{-7}$ m