Question

A tank filled with water appears 1.5 meters deep. What is the actual depth of the tank if the refractive index of water is 1.33

Answer 1

Answer:

We know that η=

apparentdistance

realdistance

η=

9.4

12.5

=1.329

When the water is replaced by liquid of 1.63

η=

apparentdepth

12.5

1.63=

x

12.5

x=7.67

So Distance by which microscope have to be moved is 9.4−7.67=1.73cm