Question:
A ray of light of wavelength λ incident at an angle 45° on the surface of a slab of ice of thickness 1 m is refracted into it at an angle of 30°. Speed of light in vacuum is c m/s. Then which of the following statement(s) is/are correct?
A ray of light of wavelength λ incident at an angle 45° on the surface of a slab of ice of thickness 1 m is refracted into it at an angle of 30°. Speed of light in vacuum is c m/s. Then which of the following statement(s) is/are correct?
Updated On: May 4, 2024
- Refractive index of ice is √2.
- Wavelength of light in ice is λ√2.
- Speed of light in ice is \(\frac{c}{√2}\) m/s.
- Time taken by the light ray to cross the ice-slab is \(\frac{\sqrt{8/3}}{c}\) sec.
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The Correct Option is A, C, D
Solution and Explanation
The correct option is: A ,C and D
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