Each quarter of a vessel of depth H is filled with liquids of the refractive indices n1, n2, n3 and n4 from the bottom respectively. The apparent depth of the vessel when looked normally is

Question:

Options :

(a) H(n1+n2+n3+n4)/4
(b) H/4(1/n1+1/n2+1/n3+1/n4)
(c) (n1+n2+n3+n4)/4H
(d) H/2(1/n1+1/n2+1/n3+1/n4)

Answer :

(b) H/4(1/n1+1/n2+1/n3+1/n4)

Answer Steps :

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