A beam of monochromatic blue light of wavelength 420 nm in air travels in water (µ =…
Physics · JEE Main · NTA Exams — Optics
A beam of monochromatic blue light of wavelength 420 nm in air travels in water (µ = 4/3). Its wavelength in water will be
- 280 nm
- 560 nm
- 315 nm
- 400 nm
Answer
(C) 315 nm
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