Question

an object of height 120 centimetre is standing at a distance of 50 cm from the mirror then the image distance from the object will be​

Answer 1

Answer:

Given,

object height h

1

=1.5 cm

real image length h

2

=−3cm

Position of object from the mirror u=−15cm

Mirror magnification formula

m=

h

1

h

2

=−

u

v

1.5

−3

=

−15

−v

v=−30cm

Apply Mirror formula

f

1

=

−30

1

+

−15

1

f=−10cm

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