Optics Question 860

Question: Two light waves having the same wavelength λ in vacuum are in phase initially. Then the first ray travels a path of length L1 through a medium of refractive index μ1 . The second ray travels a path of length L2 through a medium of refractive index μ2 . The two waves are then combined to observe interference effects. The phase difference between the two, when they interfere, is

Options:

A) 2πλ(L1L2)

B) 2πλ(μ1L1μ2L2)

C) 2πλ(μ2L1μ1L2)

D) 2πλ[L1μ1L2μ2]

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Effective path difference is μ1L1μ2L2



NCERT Chapter Video Solution

Dual Pane