The time taken by the minute hand of a watch to describe an angle of 3π/2 radian, is :किसी घड़ी की मिनट की सूई को 3π/2 रेडियन कोण की रचना में समय लगेगा :
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Correct answer: B. 45 minutes45 मिनट
Explanation
The minute hand turns 2π radian (360°) in 60 minutes. For 3π/2 radian (270°) the time = 60 × (3π/2)/(2π) = 60 × 3/4 = 45 minutes.मिनट की सूई 60 मिनट में 2π रेडियन (360°) घूमती है। 3π/2 रेडियन (270°) के लिए समय = 60 × (3π/2)/(2π) = 60 × 3/4 = 45 मिनट।More Mathematics & Numerical Ability questions
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