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Units and Measurements — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsUnits and Measurements1 Mark
Question
The plane angle subtended at the centre of a circle by an arc equal in length to the radius of the circle is equal to ________.
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Answer

The plane angle subtended at the centre of a circle by an arc equal in length to the radius of the circle is equal to 1 radian.

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