the radius of curvature of a concave mirror is 40 cm and object distance from the concave mirror is 10 centimetre find the image distance from the object.
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Answer:
The distance of image, v = -20 cm
Explanation:
Given,
Radius of curvature, r = 40 cm
Distance of object, u = 10 cm
We know,
f = r/2
= 40/2
= 20 cm
We know,
1/u + 1/v = 1/f
or, 1/v = 1/f - 1/u
or, 1/v = 1/20 -1/10
or, 1/v = -0.05
or, v = -20
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