TS EAMCET · Physics · Wave Optics
A Young's double slit experiment apparatus has slits separated by and a screen away from the slits. The whole apparatus is immersed in a liquid medium of refractive index and the slits are illuminated with green light ( in vacuum). Find the fringe width of the pattern formed on the screen.
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
When a light wave enters a medium of refractive index μ, its wavelength becomes λ'=λμ. Fringe width in YDSE is given by β=λ'Dd=550×10-9×60×10-2119×2×10-4=1.35 mm.
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