Question

A 5cm tall object is placed perpendicular to principal axis of a convex mirror of focal length 20 cm. Distance of object from lens is 30cm. Find position , nature and size of image. Also find power of lens.
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Answer 1

Answer:

Light - Reflection and Refraction. A 5 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 30 cm. ... Thus, a real and inverted image which is 10 cm tall, is formed at a distance of 60 cm on the right side of the lens.