Optics Question 868

Question: In a Young’s double slit experiment with light of wavelength β , fringe pattern on the screen has fringe width β . When two thin transparent glass (refractive index u) plates of thickness t1 and t2 (t1>t2) are placed in the path of the two beams respectively, the fringe pattern will shift by a distance

Options:

A) β(μ1)λ(t1t2)

B) μβλt1t2

C) β(μ1)λ(t1t2)

D) (μ1)λβ(t1+t2)

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Shift =β(μ1)λt1β(μ1)λt2

=β(μ1)λ(t1t2)



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