A point object O is placed in front of a glass rod having spherical end of radius of curvature 30 cm. The image would be formed at

Options

A. 30 cm left
B. infinity
C. 1 cm to the right
D. 18 cm to the left.

Answer

A

Explanation

By using formula, `(mu_(2))/(v) - (mu_(1))/(u) = (mu_(2) - mu_(1))/( R)`
`rArr " " (1.5)/(v) - (1)/((-15)) = ((1.5 - 1))/(+30) rArr v = - 30 cm`
Negataive sign shows that, image is obtained on the same side of object i.e., towards left