if the incident ray is in glass and its corresponding refracted ray is in air, the angle of incidence will be:
(a) equal to angle of refraction
(b) smaller than the angle of refraction
(c) greater than the angle of refraction
(d) none of the above
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the answer is option C] greater than angle of refraction
Somanshi:
but my language is easier than u
but there is nothing such as "rarer" or "denser" medium because the density of the medium does not affects how much it will refract.. the correct term for it is refractive index
your term is very correct but there is dependence on the medium whether it is rarer or denser.
density is just mass per unit volume, that doesn't affect the speed of light in the medium, there are examples of pairs of medium in which a "rarer" or the one with low density has higher refractive index
but agreed, that in some books they use terms "rarer" and "denser" but a better term can be optically rarer and denser respectively
great ans
thanku
can u tell me about the examples
hydrogen and helium is an example
diamond and moissanite are also a pair of nice examples
Answered by
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the answer is (b) will be smaller than the angle of refraction.
because the light ray is travelling from a medium of higher refractive index(glass) to a medium of lower refractive index (air), it shall bend away from the normal and hence the angle of refraction will be greater than the angle of incidence.
because the light ray is travelling from a medium of higher refractive index(glass) to a medium of lower refractive index (air), it shall bend away from the normal and hence the angle of refraction will be greater than the angle of incidence.
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