किसी चाप की लंबाई समान रखते हुए त्रिज्या दुगुनी कर दी जाती है। यदि पहले कोण \(\frac{3\pi}{5}\) था तो नया कोण क्या होगा?
Keeping the arc length same the radius is doubled. If the earlier angle was \(\frac{3\pi}{5}\) then what will be the new angle?
Explanation opens after your attempt
A. \(\frac{3\pi}{10}\)
Concept
For the same arc length \(\theta\) is inversely proportional to radius. When radius doubles the angle becomes half as \(\frac{3\pi}{10}\).
Why this answer is correct
The correct answer is A. \(\frac{3\pi}{10}\). For the same arc length \(\theta\) is inversely proportional to radius. When radius doubles the angle becomes half as \(\frac{3\pi}{10}\).
Exam Tip
समान चाप लंबाई के लिए \(\theta\) त्रिज्या के व्युत्क्रमानुपाती है। त्रिज्या दुगुनी होने पर कोण आधा होकर \(\frac{3\pi}{10}\) होगा।
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