Question

An object 2 cm high is placed at a distance 16cm from a concave mirror produces real image 3 cm high ,find
1. focal length
2. position image
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Answer 1

Explanation:

ho=2cm , u=-16 , hi=-3

hi/ho= -v/ u

-3/2=-v/-16

-3×16/2= v

v=-24

-1/24+(-1)/16= 1/f

-5/48=1/f

f=-48/5

f=-9.6

Answer 2

Answer:

-9.6

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