Question

Concave mirror forms 25cm high image of an object placed at 20cm in front of concave mirror of focal length 15cm.Obtain the position of image and height of an object, also draw ray diagram of it​

Answer 1

Explanation:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f1=v1+u1

−201=v1−251

⇒v1=−201+251

v=100cm

The image will be real, inverted magnified