A candle is placed infront of a concave mirror. The image of candle is formed on a wall at
a distance of 2 m from the candle. The size of the image is 6 times that of the candle. The
distance from the mirror is
Answers
Answered by
1
Answer:
The distance of the candle from mirror is 34.3cm
Explanation:
Distance from candle = 2m (Given)
Size of image = 6 times (Given)
As the image is obtained on the wall, it will be a real image.
m = v/u = 6
v = u +2
Therefore,
u+2/u = 6
u +2 = 6u
5u = 2
= 0.4m or 40cm
Focal length = 1/f = 1/v-1/u
1/f = 1/40 - 1/240
= -7/240
= 34.3cm
Thus, the distance from candle is 34.3cm
Answered by
0
Answer:
The distance from the mirror is 0.4 metres
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