In a spherical glass marble of radius 6 cm, a small air bubble is formed at 1 cm from the centre of the marble. The apparent position of the air bubble from the nearest point on the surface of the marble is about,
(refractive index of glass is 1.5.)

Options

A. 3.3 cm
B. 4.6 cm
C. 5.4 cm
D. 7.0 cm

Answer

A

Explanation

Refractive index of glass,
`mu=("Real distance"(d_(1)))/("Apparent distance"(d_(2)))`
Given, `d_(1)=(6-1)cm=5 cm`
or `" "1.5=5/d_(2) " "( because mu=1.5, " given ")`
or `d_(2)=3.33 cm`