JEE Main20206 Sep 2020Evening ShiftPhysicsWave OpticsActual
A Young's double-slit experiment is performed using monochromatic light of wavelength λ . The intensity of light at a point on the screen, where the path difference is λ , is K units. The intensity of light at a point where the path difference is λ 6 is given by nK 12 , where n is an integer. The value of n is
Correct answer
0
Step-by-step solution
I = I 0 cos 2 ϕ 2 = kcos 2 π λ × λ 6 = k   cos 2 π 6 = 3 k 4 = 9 k 12 n = 9