Question
Download Solution PDFत्रिज्या 42 सेमीचा गोल वितळवला जातो आणि 21 सेमी त्रिज्येच्या वायरमध्ये पुन्हा तयार केला जातो. वायरची लांबी शोधा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिल्याप्रमाणॅ:
गोलाची त्रिज्या= 42 सेमी
वायरची त्रिज्या = 21 सेमी
सुत्र:
व्रुत्तचित्तिचे घनफळ = πr2h
गोलाचे घनफळ = [4/3]πr3
गणना:
समजा वायरची लांबी x आहे, तर
प्रश्नानुसार
π × 21 × 21 × x = [4/3] × π × 42 × 42 × 42 [ज्याअर्थी घनफळ स्थिर राहील]
⇒ x = (4 × 42 × 42 × 42)/(21 × 21 × 3)
⇒ x = 224 सेमी
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