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A candle is placed on the principal axis of a concave mirror at a distance of 20 cm from the mirror the focal length of the mirror is 10cm the image formed will be?
Sweetglow214
Use 1/s + 1/s' = 1/f
s = 20cm
f = +10cm (positive since the mirror is concave)
1/s'=1/f - 1/s
1/s'=1/10 - 1/20 = 1/20
So, s'=20cm. The distance from the image to the mirror is 20cm, which is not surprising, since the object placed at 1/2 of the focal length and therefore exactly at the radius of curvature point. The image is real and inverted.
Wiki User
∙ 13y ago
Nhlamulo Life
Real inverted and enlarged
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