A convex lens is placed in contact with a plane mirror. A point object at a distance of 20 cm on the axis of this combination

Question

A convex lens is placed in contact with a plane mirror. A point object at a distance of 20 cm on the axis of this combination

A convex lens is placed in contact with a plane mirror. A point object at a distance of 20 cm on the axis of this combination has its image coinciding with itself. What is the focal length of the lens ?

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

The focal length of the lens 20 cm.

7 views Answered 2023-02-05 15:29