The radius of curvature of a concave mirror is 50cm. Where should an object be placed in the mirror, so as to form its image at infinity? Justify your answer.
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Given; Radius of Curvature(R) $=50\text{cm};$$\text{R}=2\text{f}$
$\Rightarrow50=2\text{f}$
$\Rightarrow\text{f}=\frac{50}{2}=25\text{cm}$
Focal length $=25\text{cm}.$ When an object is kept at the focus of the concave mirror then the image is formed at infinity.
$\Rightarrow50=2\text{f}$
$\Rightarrow\text{f}=\frac{50}{2}=25\text{cm}$
Focal length $=25\text{cm}.$ When an object is kept at the focus of the concave mirror then the image is formed at infinity.
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