Two beams of light having intensities I and 4I interfere to produce a fringe pattern on a screen. The phase difference between the beams is p/2 at point A and p at point B. Then the difference between the resultant intensities at A and B is:
2I
4I
5I
7I
Resultant Intensity of two wave -
- wherein
Intencity of wave 1
Intencity of wave 2
Phase difference
Option 1)
2I
Incorrect
Option 2)
4I
Correct
Option 3)
5I
Incorrect
Option 4)
7I
Incorrect