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Dual Nature Of Radiation And Matter

Question

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A light passing through air has wavelength 6000 A^o^. The wavelength when same ray passes through a glass slab of refractive index 1.5 will be:

2000 A^o

4000 A^o

8000 A^o

1200 A^o

Solution

B.

4000 A^o

When the light ray passes through a glass slab, then new wavelength

$λ^{'} = \frac{λ}{μ} = \frac{6000}{1.5} = 4.5 A^{o}$

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