Question

Refractive index values are expressed in
a) degrees
b) Radians
c) Candela
d) no units​

Answer 1

Answer:

D)no units

Explanation:

Remember that

refractive index has no units

Answer 2

QUESTION :

Refractive index values are expressed in

a) degrees

b) Radians

c) Candela

d) no units

ANSWER :

Correct option is => (d) no units

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Explanation :-

Refractive Index is the ratio of the speed of light ( in vaccum) to its speed ( in any medium).

$n = \frac{c}{v}$

c = speed of light

v = speed of light in any medium

n = refractive index

Now , to find refractive index we take ratio of speed of light(in m/s) and speed of light (in m/s) in that medium. since both have units (m/s) so we cancel out units. Therefore Refractive index values are expressed in no units.

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