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An object 3.0cm high is placed 60.0cm from a converging l...

An object 3.0cm high is placed 60.0cm from a converging lens whose focal length is 20.0cm. Calculate the size of the image formed

A.

0.5cm

B.

1.5cm

C.

2.0cm

D.

6.0cm

Correct answer is B

F = UVU+V

20 = 60×V60+V

V = 30cm

similarly, UV = height of objectheight of image

6030 = 3h

h = 1.5cm