a ray of light strikes a glass slab at an angle of 90 degree what is the angle of incidence and angle of refraction
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angle of incidence=0
angle of refraction=0
angle of refraction=0
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Answer:
i=0° & r=0°
Explanation:
A ray of light travelling in medium 1 falls normally on the surface. Therefore, angle of incidence,i=0°
According to Snell's law,
sin i / sin r= n2/n1
sin r= n1 /n2 × sin i
= n1/n2 sin 0°
=0
Therefore, r=0
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