Question

An object is placed 16 from a concave mirror which form it's real image at a distance 24 calculate the focal length of mirror

Answer 1

u=-16units.
v=24units
1/f=1/v+1/u
1/f=1/24-1/16
1/f=2-3/48
1/f=-1/48
f=-48
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Answer 2

we changee the signs to minus cuz of sign convention and the object and image is formes in left side

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