Optics Question 842

Question: The correct curve between refractive index p, and wavelength $ \lambda $ will be

Options:

A) A

B) D

C) B

D) C

Show Answer

Answer:

Correct Answer: A

Solution:

[a] According to Cauchy’s formula $ \mu =A+\frac{B}{{{\lambda }^{2}}}+ $ …

Therefore, as $ \lambda $ increases, $ \mu $ decreases. Curve A is correct.



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