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One end of a long glass rod (mu=1.5) is ...

One end of a long glass rod `(mu=1.5)` is formed into a convex surface of radius `6.0 cm.` An object is positioned in air along the axis of the rod. Find the image positions corresponding to object distances of (a) `20.0 cm,` (b) `10.0 cm,` (c) `3.0 cm` from the end of the rod.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D

Using `mu_2/v-mu_1/u=(mu_2-mu_1)/R`, we get
`1.5/v-1.0/-20=(1.5-1.0)/(+6)`
Solving, we get `v=+45 cm`
Similarly other parts can be solved.
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