Home/ Questions/Q 412428
Next
In Process
Ajinkya Rai
Asked: 2022-11-07T05:13:47+05:30 In:

Two coherent monochromatic light beam of intensitites `I` and`4I` are superposed.The maximum and minimum possible intensities in the resulting beam, is
A. `5Iand I`
B. `5I and3I`
C. `9I and I`
D. `9I and 3I`

Two coherent monochromatic light beam of intensitites `I` and`4I` are superposed.The maximum and minimum possible intensities in the resulting beam, is
A. `5Iand I`
B. `5I and3I`
C. `9I and I`
D. `9I and 3I`
Parabola
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – C
    `I_(r)=I_(1)+I_(2)+2sqrt(I_(1)I_(2))cosphi,`
    `I_(max)=(sqrt(I_(1))+sqrt(I_(2)))^(2)rArr(sqrt(I_(1))+sqrt(4I))^(2)=9I`
    `I_(min)=(sqrt(I_(1))-sqrt(I_(2)))^(2) rArr (sqrt(I_(1))+sqrt(4I))^(2) rArr I_(min)=I`

    • 0