Question

If a diminished and a highly enlarged image should be obtained using a concave mirror of radius of curvature 15 cm, at which positions should the object be placed respectively​

Answer 1

Answer:

Correct option is

D

−30 cm, real and inverted

Given, u=−10cm,R=15cm,∴f=

2

R

=−

2

15

cm

From mirror formulae,

v

1

+

u

1

=

f

1

⇒

v

1

=

f

1

−

u

1

⇒

v

1

=

10

1

−

15

2

⇒v=−30

Nature of image is real and inverted