Question

a microscope is focused on a scratch on the bottom of Beaker. turpentine is poured into the beaker to a depth of 4cm and it is found necessary to raise the microscope through a vertical distance of 1.28 CM to bring the scratch again into focus find the refractive index of the turpentine​

Answer 1

Initial level of water v

i

=55 ml

Final level of water v

f

=83ml

Volume of stone V

stone

=V

f

−V

i

=83−55=28 ml