Science, asked by paglapagla83, 1 year ago

About focal length .?????

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Answered by TheNightRider

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✍It is the length between the pole of a spherical mirror (optical centre of lens) and the focal point.

✍It is positive in case of a convex mirror and negative in that of a concave mirror.

Answered by Anonymous

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The focal length is the distance from the optical center of the lens to the imaging sensor when the lens if focused at infinity.

✔✔ The focal length is measured in millimeters.

✔✔ Focal length directly affects the size of the image captured, as it changes the angle of view.

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