Question

3. An object is placed at 20cm from a convex lens of focal length 10cm,
find the position, nature and size of the image formed.​

Answer 1

Step-by-step explanation:

HEY MATE ........

GIVEN :

u =( - 20 cm ). ( object )

f= 10 cm ( focal lenth )

To find :

v =?? ( image formed )

Solution:

$\frac{1}{f } = \frac{1}{v} - \frac{1}{u} (convex \: lens) \\ \\ \frac{1}{10} - \frac{1}{20} = \frac{1}{v} \\ \\ \frac{1}{20} = \frac{1}{v} \\ \\ v = 20cm$

THE IMAGE FORMED AT THE CENTRE OF THE MIRROR

HOPE IT HELPS YOU

Answer 2

Answer:

hope so it will helpful to you