Question

the velocity of light in ear is 3 into 10 to the power 8 metre per second and velocity of light in glass slab is 2 into 10 to the power 8 metre per second find the refractive index of class​

Answer 1

Answer:

2 cm is the correct answer

Explanation:

We know that refractive index n=

velocityoflightinmedium

velocityoflightinair

n=

2×10

8

3×10

8

=1.5

Also n=

apparentdepth

actualdepth

n=

x

6

=1.5

So x=4cm

Dot will be raise by 6−4=2cm