sinθc=μ1

For greater wavelength (i.e lesser frequency) μ is less So, θc would be more. So, they will not suffer reflection and come out at angles less than 90∘.
A green light is incident from the water to the air - water interface at the critical angle (θc). Select the correct statement.
Held on 6 Apr 2014 · Verified 6 Jul 2026.
The entire spectrum of visible light will come out of the water at an angle of 90o to the normal
The spectrum of visible light whose frequency is less than that of green light will come out to the air medium
The spectrum of visible light whose frequency is more than that of green light will come out to the air medium
The entire spectrum of visible light will come out of the water at various angles to the normal
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