Question

13. Focal length of a concave mirror is 5 ern. What is the position of image when an oba
is placed at a distance of 10 cm from a concave mirror ? Will the image be real?​

Answer 1

Answer:

Given,

Focal length, f=50cm

Magnification, m=2

m=

u

v

=2

v=2u

From mirror formula,

f

1

=

v

1

+

u

1

f

1

=

2u

1

+

u

1

u=

2

3f

=

2

3×50

=75 cm