A lens has a focal length of -32.9 cm. Find where the image is formed if...

Question

Question

A lens has a focal length of -32.9 cm. Find where the image is formed if an object is placed 97.9 cm from the lens.

science physics

Answer 1

Answer #1

here,

the focal length , f = - 32.9 cm

the object distance , do = 97.9 cm

let the image distance be di

using the lens formula

1/f = 1/di + 1/do

- 1/32.9 = 1/di + 1/97.9

solving for di

di = - 24.6 cm

the image distance is - 24.6 cm

Answer 2

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