The diagram shows a right angled prism being used to turn a ray of light through 90°. what is the critical angle for the light in the glass ?
(A) less than 45°
(B) equal to 45°
(C) greater than 45°
(D) equal to 90°
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A)less than 45° because here total internal reflection occur which is possible only when angle of incidence is more than critical angle
So if angle of incidence is 45° so critical
angle will be less than 45°
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So if angle of incidence is 45° so critical
angle will be less than 45°
Hope you liked the answer.
Please mark it as brainliest.
RisingFlame:
critical angle for glass air interface is 42°
no . which exam
in prelims exam
last month
ok
no but in my answer key it is given C
can you please explain to me how you are saying C
if you are comfortable in it
it is given in answer key mister
ok no problem
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