define the angle of incidence and angle of refraction
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Definition of angle of incidence : the angle that a line or beam of radiation makes with the normal to the surface at the point of incidence
Definition of angle of refraction : the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occurs.
pappu90:
i am studying science subject
in your school which pattern have
it is really hard pattern na
you have practice of this pattern
my original name is ritesh
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