the ray of light is incident normally on a glass surface of refractive index 1.5 the angle of refraction
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the angle of refraction is 0° because when light is incident normally on a surface it passes undeviated.also using snells law
sini/sinr=u
if i=0 as in case of normal incodence,r must be 0 as u is never 0
sini/sinr=u
if i=0 as in case of normal incodence,r must be 0 as u is never 0
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