A wire of length \(25\pi\) cm is bent so as to be along the arc of a circle of diameter 100 cm. The…
The correct choice is: \(\frac{\pi}{2}\) Angle (in radians) = arc length ÷ radius. Radius = 100/2 = 50 cm. \(\theta = \frac{25\pi}{50} = \frac{\pi}{2}\). Hence the angle…
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A wire of length cm is bent so as to be along the arc of a circle of diameter 100 cm. The angle subtended by the arc at the centre of the circle is :
Answer and explanation
Correct answer C
The correct choice is:
Angle (in radians) = arc length ÷ radius. Radius = 100/2 = 50 cm.
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Hence the angle subtended at the centre is .
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NCHM Joint Entrance Examination (NCHM JEE)