Question

The image of a candle flame placed at a distance of 30cm from a mirror is formed on a screen placed in front of the mirror at a distance of 60cm from its pole. What is the nature of the mirror? Find its focal length.​

Answer 1

Answer:

thanks

Explanation:

The lens formula is given as,

f

1

=

v

1

−

u

1

f

1

=

+60

1

−

−30

1

f=20cm

Magnification of convex lens is given as,

u

v

=

h

o

h

i

−30

60

=

3

h

i

h

i

=−6cm

The height of image is −6cm.