Question

AN OBJECT IS PLACED AT A DISTANCE OF 50 CM FROM A CONCAVE LENS OF FOCAL LENGTH 25 Cm FIND NATURE POSITION OF IMAGE Also Find HEIGHT OF IMAGE IF OBJECT is 10cm TALL​

Answer 1

Step-by-step explanation:

Focal length of concave mirror is negative.

f=−20cm

u=−50cm

We know that :

f

1

=

v

1

−

u

1

−20

1

=

v

1

−

−50

1

v=−14.3cm.

The image is virtual, erect.