JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
The wavelength of light, while it is passing through water is 540 nm. The refractive index of water is \(\frac{4}{3}\).The wavelength of the same light when it is passing through a transparent medium having refractive index of \(\frac{3}{2}\) is __________ nm.
- A 380
- B 840
- C 480
- D 540
Answer & Solution
Correct Answer
(C) 480
Step-by-step Solution
Detailed explanation
\(\left.\frac{\mu_1}{\mu_2}=\frac{ v _2}{ v _1}=\frac{\lambda_2}{\lambda_1} \right\rvert\, v = f \lambda\) \(\frac{\mu_1}{\mu_2}=\frac{\lambda_2}{\lambda_1}\) \(\frac{\mu_{ B }}{3 / 2}=\frac{\lambda}{540}\) \(\lambda=\left(\frac{4 \times 2}{3 \times 3} \times 540\right)\)…
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