Question

A object of 5 cm in size placed at 25cm in front of a mirror of focal length 15 cm at what distance the image will be formed also find the nature and size of the image.​

Answer 1

Answer:

6 and to get image of sharp object has to be placed at 37.5cm

Explanation:

f = -15cm

object distance =U=-25cm

image distance = v = ?

hi =?

ho=?

1/f=1/u+1/v

1/-15+1/25=1/v

1/v=25-15/-375

v = - 37.5 cm

m= -(- 37.5)/-25 = hi/4

hi=150/25

= 6

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