radius of curvature = 20cm
therefore focal length = 10cm
object distance = 15 cm
1/f = 1/v - 1/u
1/10 = 1/v - 1/15
1/v = 1/6 cm
v = 6cm
original radius = 5cm
in mirror this is the image but of different radius
according to magnification
himage/ hobject = v / u
x / 5 = 6 / 15
therefore x = 2cm = radius
plz rate if correct
Moderation Team
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