An image of an object produced on a screen which is about 36 cm using a convex lens. The image produced is about 3 times the size of the object. What is the size of the object?

An image of an object produced on a screen which is about 36 cm

Q. An image of an object produced on a screen which is about 36 cm using a convex lens. The image produced is about 3 times the size of the object. What is the size of the object?

A.            12 cm

B.            33 cm

C.            39 cm

D.            108 cm

Answer: 12 cm

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