2 cm candle is placed in front of convex mirror having focal length 15 cm. Image is formed 10 cm away from the mirror. Find 1. The object distance?
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2 cm candle is placed in front of convex mirror having focal length 15 cm. Image is formed 10 cm away from the mirror. Find 1. The object distance?
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Answer:
Given that
u= -10 cm
f= 15 cm
We need to find v
We know the formula
1/f = 1/v + 1/u
Therefore, 1/v= 1/f – 1/u
Substituting the known values in the above equation we get,
1/v= 1/15 + 1/10
1/v = (2+3)/30 (lcm)
Hencev=5/30 = 6 cm
v= 6cm
Nature of the image: The image is formed behind the mirror and it is virtual and erect.