Question

A 6 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 25cm. The distance of the object from the lens is 40cm
—By calculation determine
i) the position and
ii) the size of the image formed​

Answer 1

Answer:

Given, height of objects,h= 6cm

focal length of lens,f=25cm

distance of objects,u=40cm

I) using lens formula,1/f= 1/v-1/u

→1/v= 1/f+1/u=1/25+1/-40=8-5/200=3/200

v=200/3= 66.67cm

Answer 2

Explanation.

answer:Given, height of objects,h= 6cmfocal length of lens,f=25cmdistance of objects,u=40cmI) using lens formula,1/f= 1/v-1/u→1/v= 1/f+1/u=1/25+1/-40=8-5/200=3/200v=200/3= 66.67cm

thanks..