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enot [183]
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?​
Physics
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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