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Gupta Ravi

Asked: January 6, 2025In: Class 12 Physics

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?

The focal length of the given convex lens is 20 cm. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

Gupta Ravi

Asked: January 4, 2025In: Class 12 Physics

When an object is placed between f and 2f of a concave mirror, would the image formed be (i) real or virtual, and (ii) diminished or magnified?

When an object is placed between f and 2f of a concave mirror, the image formed is (i) real, and (ii) magnified. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

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