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16/05/2021 2:21 pm
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When a ray of light propagating (in a straight line) in one transparent medium to enter another transparent medium
(a) it gains speed
(b) it losses speed
(c) it neither gains nor losses speed
(d) its speed in second medium depends upon relative refractive index for a given pair
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16/05/2021 2:21 pm
(d) its speed in second medium depends upon relative refractive index for a given pair