Question
Download Solution PDFधातु के एक बेलनाकर पाइप का आयतन 7480 सेमी3 है। यदि इसकी लंबाई 1.4 मी है और इसकी बाहरी त्रिज्या 9 सेमी है, तो इसकी मोटाई (दिया गया है π = 22/7) है:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया:
बेलन की लंबाई (h) = 1.4 m = 140 cm, बेलन की बाहरी त्रिज्या, R = 9 cm और बेलन की आंतरिक त्रिज्या = r cm
संकल्पना:
ठोस बेलन का आयतन, \(V_s=(\pi R^2h)\)
खोखले बेलन का आयतन, \(V_h= \pi (R^2-r^2)h\)
गणना:
खोखले बेलन का आयतन = \(V_h=\pi (R^2-r^2)h\)
\(\Rightarrow 7480=\frac{22}{7} \times (9^2-r^2) \times 140\)
\(\Rightarrow(81-r^2) = 17\)
⇒ r = 8 cm
∴ बेलनाकार पाइप की मोटाई = R – r = 9 – 8 = 1 cmLast updated on Jul 14, 2025
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