Question

A double slit apparatus is held 1.2 m from a screen.

(a) When red light (λ = 600 nm) is sent through the double slit, the interference pattern on the screen shows a distance of 12.5 cm between the first and tenth dark fringes. What is the separation of the slits?

(b) What will be the difference in path length for the waves travelling from each slit to the tenth nodal line?

Answer 1

@ganeshie8

Answer 2

@Hero @knov

Answer 3

plz help me?

Answer 4

@agent0smith

Answer 5

@Vincent-Lyon.Fr

Answer 6

Do you know the expression of the distance between two identical fringes?

Answer 7

@shamim

Answer 8

dude this physics

Answer 9

no its is english

Answer 10

i mean you asked it in mathematics forum

Answer 11

use formula , fringe width = (wavelength . distance between slits)/seperation of slits

Answer 12

sorry for typing mistake.. its distane between slit and the screen

Answer 13

Take a look at this problem.

http://openstudy.com/updates/53a0afbde4b0fb4d2b4a4ee9