Question

Q33. An object of height 5 cm is held 30 cm away from a converging lens of focal length
10 cm. Find the position, size and nature of the image formed 3​

Answer 1

Answer:

Height of object, h o

=5cm, object distance u=−30cm, focal length f=−20cm

Now, from mirror formula :

f = v1 + u1

v1= f1−u1

= 20−1+ 301 =− 601

v=−60cm - image distance

Magnification, m=− uu =−30−60 =−2

Size of image, h i

=m(h o )=−2(5)=−10 cm