An object 1cm high placed on the axis 15cm from a converging lens forms an image 30cm from the lens. The size of the image is

Jamb 1978

An object 1cm high placed on the axis 15cm from a converging lens forms an image 30cm from the lens. The size of the image is A. 0.5 cm B. 1.5 cm C. 3 cm D. 2.5 cm E. 2 cm. 

ANSWER: Option E

EXPLANATION: Using the formula below;

Image distance/Object distance = Image height/Object height

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