Q. 204.3( 7 Votes )

An erect image th

Answer :

For an erect image, magnification is positive. Thus, m = 3 for an erect image three times the size of the object.
m = 3

For a concave mirror,

v = -3u
Using Mirror formula,

Putting the value of v = -3u

v = -3u
v = 36 cm
Thus, the image is formed behind the mirror at a distance of 36 cm.

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