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sinI/sinR =3/2
the ratio of sin are nearly equal to the ratio of their angler
so,
I/R=3/2
R=2/3 ×40
R=26(approx)
in the given options c option seems to be correct
the ratio of sin are nearly equal to the ratio of their angler
so,
I/R=3/2
R=2/3 ×40
R=26(approx)
in the given options c option seems to be correct
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