Question

An object is placed perpendicular to the principal axis of a convex lens of focal length 20cm. The distance of object from lens is 30cm. Find:
a.The position of image
b.The magnification
c.The nature of the image

Answer 1

An object is placed perpendicular to the principal axis of a convex lens of focal length 20cm. The distance of object from lens is 30cm. Find:

a.The position of image

b.The magnification

c.The nature of the image

Answer 2

Answer:

Explanation:

position of object=v

1/f=1/v-1/u

1/v=1/f+1/u

1/20+(1/-30)=1/60

v=60cm