Question

A convex lens forms a real image of height 4 cm on the screen when the lens is shifted to a new position without disturbing the object A real images formed on the screen which is written cannot find the length of the object

Answer 1

Answer:

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Answer 2

Answer:

We can find the length of Focus

Explanation:

using the formula= $\frac{1}{f}$+$\frac{1}{v}$=$\frac{1}{u}$