Question

A 10 cm tall object is placed perpendicular to the principal of axis of a convex lens of focal length 12 cm. the distance of the object from the lens is 18 cm. find the nature, position and size of the image formed ?​

Answer 1

Answer:

Step by Step explanation

Explanation:

using lens formula 1/f=1/v-1/u

1/12=1/v-1/18

1/12+1/18=1/v

18+12/216=1/v

30/216=1/v

0.13=1/v

m=0.13/10

m=1.3

Answer 2

Answer:

h= 10cm ( height of the image)

u= -18cm (object distance)

f= 12cm

1/v-1/u =1/f

So, 1/v= 1/f+1/u

1/v= 1/12+1/-18=1/36

v=36cm

h'/h = v/u

So,h'= v/u*h

h'= 36/-18*10

h' = -20

Nature: real and inverted because h' is negative