हिंदी

If the radius of curvature of a concave mirror is 30 cm, what is its focal length?

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प्रश्न

If the radius of curvature of a concave mirror is 30 cm, what is its focal length?
एक पंक्ति में उत्तर
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उत्तर

Focal length = 1/2 of radius of curvature
= 1/2 X 30 = 15cm.

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Images Formed by a Plane Mirrors
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अध्याय 6: Light - Spherical Mirrors [पृष्ठ २५८]

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फ्रैंक Physics [English] Class 9 ICSE
अध्याय 6 Light
Spherical Mirrors | Q 3 | पृष्ठ २५८

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