Question

If an object of 7cm height is placed at a distance of 12cm from a convex lens of focal length 8cm, find the position of the image formed.

Answer 1

If an object of 7cm height is placed at a distance of 12cm from a convex lens of focal length 8cm, find the position of the image formed.

Good question,

Here is your perfect answer!

Here,

u = - 12cm,

f = 8cm

(sign convention)

By lens formula,

=) 1/v = 1/u + 1/f

= - 1/12 + 1/8

= - 2+3 / 24

= 1/24

=) v = 24cm.

+ sign indicates that image is on the right side.

Answer 2

ANSWER

QUESTION

If an object of 7cm height is placed at a distance of 12cm from a convex lens of focal length 8cm, find the position of the image formed.

Given

u=-12 cm

ho=7cm

f=8cm

1/f=1/v-1/u

1/v=1/f+1/u

1/v=1/8+1/-12

1/v= 3-2/24

1/v=1/24

v=24cm

Thanks