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2 years ago

15

A concave mirror of radius of 30cm produces and image three times in size of the object the distance of the object from the mirr

or is?

1 answer:

Sloan [31]2 years ago

4 0

$\\ \sf\longmapsto m=\dfrac{-v}{u}$

v is image distance and u is object distance.

$\\ \sf\longmapsto 3=\dfrac{-v}{30}$

$\\ \sf\longmapsto -v=30(3)$

$\\ \sf\longmapsto v=-90cm$

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