Question

a diverging lens has a focal length of 20cm. at what distance should an objectt of heigh
t 4cm from the optical centre of the lens be placed so that the formed is 10cm away from the image. also find the size of the image

Answer 1

Answer:

(i) f= -20 cm h1=4 cm, v= -10, u= ?, h2=? (ii) Read more on Sarthaks.com - https://www.sarthaks.com/165531/divergent-lens-has-focal-length-cm-at-what-distance-should-object-height-from-the-optical