CUET · PHYSICS · PYQ PAPER 2025
The wavelength of light coming from a sodium source is 589 nm. Its wavelength in crown glass having refractive index 1.52 is
- A 387.5 nm
- B 589 nm
- C 447 nm
- D 895 nm
Answer & Solution
Correct Answer
(A) 387.5 nm
Step-by-step Solution
Detailed explanation
\(\lambda = \frac{\lambda_0}{n}\) \(\lambda = \frac{589 \text{ nm}}{1.52}\) \(\lambda = 387.5 \text{ nm}\)
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