A beam of light propagates through a medium 1 and falls onto another medium 2 at an angle 45º. After that it propagates in medium 2 at an angle 30º. The light's wavelength in medium 1 is 141.4 Å. Wavelength has the light in medium 2 … × 100 Å.
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Ans.1
Sol.
μ 1 sin45º = μ 2 = sin30º
λ 2 = 
= 
= 100 Å
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