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Question : 3
Total: 4
Monochromatic light of wavelength 600 nm
3
Solution:
Given : λ = 600 n m
μ = 1.33
(i) In reflection, the ray will reflect back in the same medium as that of incident ray.
Hence, wavelength( λ ) = 600 n m
frequency= v =
=
= 0.5 × 10 15 H z
speed= 3 × 10 8 m s − 1
(ii) In refraction, the speed and wavelength change while frequency remains same.
Hence, speed= v =
=
= 2.26 × 10 8 m s − 1
wavelength= λ =
=
= 4.52 × 10 − 7 m
= 452 n m
frequency= v = 0.5 × 10 15 H z
(i) In reflection, the ray will reflect back in the same medium as that of incident ray.
Hence, wavelength
frequency
speed
(ii) In refraction, the speed and wavelength change while frequency remains same.
Hence, speed
wavelength
frequency
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