Wave OpticsMedium
Question
An electromagnetic wave of wavelength λ0 (in vacuum) passes from P towards Q crossing three different media of refractive index μ, 2μ and 3μ respectively as shown in figure. φP and φQ be the phase of the wave at points P and Q. Find phase difference φQ - φP [Take : μ = 1]
Options
A.0
B.
C.
D.π
Solution
Optical path difference between (OPD) P & Q
(O. P. D) = 2.25 λ0 × 1 + (3.5λ0) 2 + 3λ0 × 3 = 18.25λ0
and difference ᐃ
= 
× ᐃx = 
(O. P. D) = 2.25 λ0 × 1 + (3.5λ0) 2 + 3λ0 × 3 = 18.25λ0
and difference ᐃ
= × ᐃx = Create a free account to view solution
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