Question

My father went to Mumbai on 18th July and returned from there on 3rd August
How long was he away from home ?
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Answer 1

Answer:

16 days

Step-by-step explanation:

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Answer 2

Given :- Refractive index of water with respect to air = 4/3

To Find :- Refractive index of air with respect to water

Solution :-

Refractive index of air with respect to water =

$= \frac{1}{refractive \: index \: of \: water \: with \: respect \: to \: air}$

$= \frac{1}{ \frac{4}{3} } \\ = \frac{3}{4} \\ = 0.75$

Hence, the Refractive index of air with respect to water is 0.75.