(15) A ray of light makes an angle of 50° with the (9)
surface Sy of the glass slab. Its angle of (10)
incidence will be .......... (March ’19)
ta) 50°) 40° (c) 140° (d) 0°
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Answer:
it's option b hope it will help you mark as brainlist
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as per my calculations the answer is b) part i.e 40°
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