The radius of curvature of a concave mirror is 10 cm. At what distance from the pole of the mirror would an image of the sun be formed?

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Solution

If the object is placed at infinity, the image is formed at the focus.

We know that the focal length is half the radius of curvature.
$F = \frac{R}{2}$ $⟹$ f = 5 cm

So the image of the sun is at 5 cm from the pole.

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The radius of curvature of a concave mirror is 10 cm. At what distance from the pole of the mirror would an image of the sun be formed?

If the object is placed at infinity, the image is formed at the focus. We know that the focal length is half the radius of curvature. F=R2 ⟹ f = 5 cm So the image of the sun is at 5 cm from the pole.

If the object is placed at infinity, the image is formed at the focus.

We know that the focal length is half the radius of curvature.
$F = \frac{R}{2}$ $⟹$ f = 5 cm

So the image of the sun is at 5 cm from the pole.