Question

If a diminished and a highly enlarged image should be obtained using a concave mirror of radius of curvature 15 cm, at which positions should the object be placed respectively?

Answer 1

Answer:

Given, u=−10cm,R=15cm,∴f=2R =− 215 cm

From mirror formulae,  

v1 +u1 =f1 ⇒v1 =f1 −u1⇒ v1 =101 −152

⇒v=−30

Nature of image is real and inverted.

Explanation:

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