SSC CHSL 2023 · PYQ · Science / Physics · medium
In optics, the refractive index of a substance is described by the formula n = c/v, where c is:
- A.the centre of curvature
- B.the radius of the sphere
- C.the speed of light in vacuum✓ Correct
- D.the speed of light in medium
In the formula n = c/v, 'c' represents the speed of light in vacuum (~3×10⁸ m/s) and 'v' is the speed of light in the given medium.
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