AP EAMCET · PHYSICS · Wave Optics
Young's double slit experiment is conducted with monochromatic light of wavelength \(5000 Å\), with slit separation of \(3 \mathrm{~mm}\) and observer at \(20 \mathrm{~cm}\) away from the slits. If a \(1 \mathrm{~mm}\) transparent plate is placed infront of one of the slits, the fringes shift by \(6 \mathrm{~mm}\). The refractive index of the transparent plate is
- A \(1.08\)
- B \(1.09\)
- C \(1.1\)
- D \(1.2\)
Answer & Solution
Correct Answer
(B) \(1.09\)
Step-by-step Solution
Detailed explanation
Given, wavelength, \(\lambda=5000 Å=5 \times 10^{-7} \mathrm{~m}\) Slit separation, \(d=3 \mathrm{~mm}=3 \times 10^{-3} \mathrm{~m}\) Distance between slit and screen, \(D=20 \mathrm{~cm}=0.2 \mathrm{~m}\) Thickness of transparent plate…
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