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NEET 2023
Exam
NEET
Year
2023
Subject
Physics
Chapter
Ray Optics

NEET 2023 · Physics · Ray Optics

Which set of colours will come out in air for a situation shown in...

Which set of colours will come out in air for a situation shown in figure?
Which set of colours will come out in air for a situation shown in figure?

Options

  1. AOrange, Red and Violet
  2. BBlue, Green and Yellow
  3. CYellow, Orange and Red
  4. DAll

Correct answer

C. Yellow, Orange and Red

Step-by-step solution

We know, sin⁡iC=1μ\sin i_C=\frac{1}{\mu} Also μ∝1λ\mu \propto \frac{1}{\lambda} Thus sin⁡ic∝λ\sin i_c \propto \lambda Which set of colours will come out in air for a situation shown in figure?
Therefore, for higher value of λ\lambda critical angle will be more Hence Yellow, Orange and Red will come out to air.
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