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JEE Mains · Physics · STD 12 - Ray optics and optical instruments
  • JEE Mains 2014
  • Easy
  • MCQ

A green light is incident from the water to the air - water interface at the critical angle \((\theta)\). Select the correct statement .

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Answer & Solution

Correct Answer

(A) The spectrum of visible light whose fre quency is less than that of green light will come out to the air medium

Step-by-step Solution

Detailed explanation

For critical angle \(\theta_{\mathrm{c}}\) ,

\(\sin \theta_{c}=\frac{1}{\mu}\)

For greater wavelength or lesser frequency \(\mu\) is less.

So, critical angle would be more. So, they will not suffer reflection and come out at angles less then \(90^o\).

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