Question

An object of height 6 cm is placed in front of concave mirror of focal length 9 cm at a distance of 27 cm . Find the position nature and size of image

Answer 1

Answer:

3cm

Explanation:

image of the object forms between focus and centre.

f=9cm,u=27cm,v=?

1/f=1/u+1/v

1/9=1/27+1/v

so,v=27/2

using,I/o=v/u

I/6=27/2/27

so,I=3cm.

therefore image height=3cm

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