त्रिज्या 1 सेमी और ऊंचाई 2 सेमी वाले  एक सम गोलाकार बेलन का आयतन  (घन सेमी) ज्ञात कीजिए । (π = 22/7)

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NTPC CBT 2 2016 Previous Paper 1 (Held On: 17 Jan 2017 Shift 1)
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  1. 22/7
  2. 22
  3. 44
  4. 44/7

Answer (Detailed Solution Below)

Option 4 : 44/7
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Detailed Solution

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सम गोलाकार बेलन का आयतन = πr2h

गणना:

r = 1 सेमी और h = 2 सेमी

 आयतन = (22/7) × 1 × 2 = 44/7 घन सेमी।

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