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A concave mirror of focal length 15 cm f...

A concave mirror of focal length 15 cm forms an image having twice the linear dimensions of the object. The position of the object when the image is virtual will be

A

45 cm

B

35 cm

C

25 cm

D

7.5 cm

Text Solution

Verified by Experts

The correct Answer is:
D
A concave mirror gives a virtual, magnified image when the object is placed between P and F. Hence u lt f. It should be 7.5 cm. It cannot be 45 cm, 35 cm or 25 cm as these distances gt f.
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