Question

A candle is held 100 cm away from a wall and a convex lens is placed between them. Two
distinctly different real images of the candle will be formed on the wall at two different
positions of the lens if the focal length of the lens is
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Answer 1

Answer:

If the candle is moved closer to the mirror, then the screen will have to be moved away from ... A 4.5 cm needle is placed 12 cm away from a convex mirror of focal length 15 cm. .... In the given situation, the object is virtual and the image formed is real. ..... formed by a convex lens at two different locations separated by 20 cm.

Explanation: