Question

An object is located 30 cm in front of a convex mirror. if the image is formed 15 cm behind the mirror, what is the focal length of the mirror? describe the image

Answer 1

Here, u=−30cm,f=15cm

From 1/v=1/f − 1/u

=1/15 − 1/−30

=3/30

=1/10

v=10cm.

The image is virtual, erect, smaller in size and at a distance of 10cm from the pole of the mirror at the back of the mirror.

Answer 2

Answer:

used for the manufacture of metallic alloys

Explanation:

refer above answer....................