Question

An object is placed at a distance of 30 cm from a concave lens of focal length 15 cm list four charectersticks of image formed by the lens

Answer 1

Given u=-30 cm; f =-15 cm  

v=-10 cm  

Characteristics of image are

a. The image formed is virtual.  

b. It is erect.

c. It is diminished in size.  

d. The image is formed at a distance of 10 cm from the optical center of the concave lens on the same side of the object.