Question

The absolute refractive index of medium B is less than the absolute
refractive index of medium A.​

Answer 1

Answer:

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(i) The absolute refractive index of a medium cannot be less than one.

(ii) Given : Shift in the position of the coin =4cm

Refractive index (

a

μ

m

)=

3

4

Real depth = ?

We know that : Shift in the position of the coin = Real depth (1−

a

μ

m

1

)

4= Real depth (1−

4

3

)

4= Real depth ×

4

1

Real depth of water=

1

4×4

=16 cm