Question

Can anyone please solve this question. .please.

Answer 1

Let the thickness of the glass slabs are equal=t

refractive index=real depth /apparent

depth

real depth=t+t=2t

apparent depth=t/n1+t/n2

n1=4/3, n2=3/2

refractive index=2t/(3t/4+2t/3)

=24/17=1.4

answer is (b)