When light enters from air to a medium “X” its speed becomes 2 Answer: 108 ms-1 , then refractive index of the medium ‘X’ is …………………
When light enters from air to a medium “X” its speed becomes 2 Answer: 108 ms-1 , then refractive index of the medium ‘X’ is …………………
A) 2
B) 3
C) 1.5
D) 1
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