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3. A concave mirror produces a real image of size 3 times that of the object at a distance of 30 cmpole of the mirror. Find the position of the object.the(Sinilar C.RSE 20

Answer»

Given: Object distance =u=-30cm(by sign convention)v=?height of object be =h cmheight of image=- 3h cm(real image)h=-v/u

m=height of image/height of object⇒-3h/h = -v/uh3=v/u⇒v=uX3∵u=-30cmwe get v=-30x3⇒-90cmNegative sign indicates that image formed is real and inverted at a distance of 90cm from mirror.



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