A converging lens with focal length is used to project an image onto a screen…

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

A converging lens with focal length

15\,\text{cm}

is used to project an image onto a screen positioned

45\,\text{cm}

from the lens on the side opposite the object. What is the required object-to-lens distance

s_o

so that a sharp image appears on the screen? (a)

15\,\text{cm}

(b)

22.5\,\text{cm}

(c)

11\,\text{cm}

(d)

30\,\text{cm}