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What do you mean by focal length of a mirror? - Physics

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Question

What do you mean by the focal length of a mirror?
One Line Answer

Solution

The distance of the principal focus from the pole of the mirror is called the focal length of the mirror.
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Chapter 6: Light - Exercise [Page 261]

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Frank Physics [English] Class 9 ICSE
Chapter 6 Light
Exercise | Q 7 | Page 261
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