For the same angle of incidence the angle of refraction in three different media A,B,C ARE 10 , 25 and 40 respectively , in which medium the velocity of light will be maximum??
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We know that refraction takes place due to the change in speed of light when it travels from one medium to another.
Speed increases when refractive index is lesser and it decreases when refractive index increases comparatively..
We also know that when speed increases,the refracted light ray moves away from the normal and angle of refraction increases.
So in 40° case,speed is highest and refractive index least of the three.so
C
Speed increases when refractive index is lesser and it decreases when refractive index increases comparatively..
We also know that when speed increases,the refracted light ray moves away from the normal and angle of refraction increases.
So in 40° case,speed is highest and refractive index least of the three.so
C
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