Question

Ray of light falls on a transparent glass slab of refractive index 1.73 is the reflected and the refracted ray are perpendicular to each other find angle of incident​

Answer 1

Answer:

59°  58'  14''

Explanation:

let angle of incidence = i , angle of refraction = r

90 -i + 90-r = 90

i + r = 90

r = 90 -i

n = sini/sinr = sini/cosi = tani = 1.73  , i = 59.9706° = 59°  58'  14''

Answer 2

Answer:

59°  58'  14''

Explanation:

let angle of incidence = i , angle of refraction = r

90 -i + 90-r = 90

i + r = 90

r = 90 -i

n = sini/sinr = sini/cosi = tani = 1.73  , i = 59.9706° = 59°  58'  14''

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