Question

a girl stand in front of mirror at a distance od 1 m she see her irrect image whose hight is 1/5 of her real height find what is the nature of mirror and calculate facal length​

Answer 1

Step-by-step explanation:

So the image is 1/6 of the original height.

u is distance of object from mirror, u=-30 cm

Magnification m=

6

1

=−

−30

v

v=5 vm

Now

f

1

=

v

1

+

u

1

f

1

=

5

1

+

−30

1

f=6cm