Question

what is refractive my ndex .what is it's unit .which has the higher refractive index glass or water ? the radius of curvature of a spherical mirror is 20 cm .what is it focal length​

Answer 1

Answer:

Refractive index is the measure of bending of a ray of light when it moves from one medium to another.

Refractive index does not have any unit.

Refractive index of glass is higher than water.

Focal length = C/2 = 10cm

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Answer 2

Answer:

Refractive index is the measure of bending of a ray of light when it moves from one medium to another.

Refractive index does not have any unit.

Refractive index of glass is higher than water.

Focal length = C/2 = 10cm

Explanation:

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