In Young's double slit experiment, the intensity of light at a point on the screen is ^ K ^ unit for path difference ^ ^ . What would be the intensity at a point if path difference is ^ 4 ?

Step-by-step solution

When path difference is , phase difference is 2 and when path difference is 4 , the phase difference is 2 . If I ₀ is the intensity of the two waves then the resultant intensity is given by aligned I &=4 I₀ ² 2 K &=4 I₀ ² 2 2 =4 I ² =4 I₀ =-1 aligned array l When = 2 aligned I =4 I ₀ ² 4 & &=4 I ₀ 1 2 = K 2 4 = 1 2 aligned array