Three immiscibles transparent liquids with erefractive indices 3/2,4/3 and 6/5 are arranged one on top of another. The depth of the liquid are 3 cm, 4 cm and 6 cm respectively. The apparent depth of the vessel is

Options

A. 10 cm
B. 9 cm
C. 8 cm
D. 7 cm

Explanation

As, `d_("app")=(d_(1))/(mu_(1))+(d_(2))/(mu_(2))+(d_(3))/(mu_(3))=(3)/(3//2)+(4)/(4//3)+(6)/(6//5)`
`=2+3+5=10cm`