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Image Formed by a Concave Mirror

A concave mir...

Question

A concave mirror has a radius of curvature $2$ m. The light from a distance source is incident on the mirror. The distance of the image of the source from the mirror is:

A

0.5 m

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B

1 m

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C

1.5 m

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D

2 m

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Solution

The correct option is B $1 m$
as the radius of curvature $(R) = 2 m$ for the concave morrom, its focal length is given by : $f = R / 2 = 1 m$ . now,for a distance object ( $u \to \infty$ ), image is formed near the focus. so,image distance, $V ≃ f = 1 m$

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