Physics, asked by mrunal26, 1 year ago

calculate the angle of incidence of light ray incident on surface of a plastic slab of refractive index is ✓3 . if the angle of refraction is 30°

Answers

Answered by Ysudeeksha

sin i/sin30 =root 3 ( given that angle of

refraction is 30 )

sin i =root 3×1/2

i=60 degree

mrunal26: its urgent

Ysudeeksha: Welcome...

Ysudeeksha: The 1st formula for refractive index is

Ysudeeksha: N = sin i/ sin r so they gave that sin r is 30.... We know that sin 30 is 1/2 substituting the values and cancelling will get 60

Ysudeeksha: That's it

Ysudeeksha: And here N=√3

Ysudeeksha: I hope u understood

mrunal26: ya

mrunal26: thank you so much

Ysudeeksha: Welcome

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