ICSE Class 10 Physics 2018 Solved Paper

Question : 16 of 78

Marks: +1, -0

Which colour of light has a higher critical angel? Red light or Green light.

Solution:

We know that

µ_{\;\text "Green "\;}>µ_{\;\text "Red "\;}

Also,

i_c ∝ \;{1}/{µ}

∴

Red light has a higher critical angle.

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