Since the intensity at the central maxima remains unchanged, the change in the path difference should be an integral multiple of the wavelength. Therefore,
Δx=(μ−1)t=nλ⇒(1.5−1)xλ=nλ⇒x=0.5n=2n
For n=1
x=2
In young's double slit experiment performed using a monochromatic light of wavelength λ, when a glass plate (μ=1.5) of thickness xλ is introduced in the path of the one of the interfering beams, the intensity at the position where the central maximum occurred previously remains unchanged. The value of x will be
Held on 28 Jun 2022 · Verified 6 Jul 2026.
3
2
1.5
0.5
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