Question

A 5.0 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm . The distance of the object from the lens is 30 cm . By calculation, determine, (a) the position, (b) the size of the image formed​

Answer 1

Answer:

h=+5

Explanation:

h=+5

f=+12

u=-30

1/f=1/v-1/u

1/12=1/v-1/-30

1/-v=1/12+1/30

1/v=7/60

v=60/7

v=8.5

position = middle of focus length

size image=diminished,real inverted