Optics Question 705

Question: The refractive index of a certain glass is 1.5 for light whose wavelength in vacuum is 6000AA . The wavelength of this light when it passes through glass is

[NCERT 1979; CBSE PMT 1993; MP PET 1985, 89]

Options:

A) 4000AA

B) 6000AA

C) 9000AA

D) 15000AA

Show Answer

Answer:

Correct Answer: A

Solution:

λmedium=λairμ=60001.5=4000 AA



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