Question
Download Solution PDF3 सेमी व्यासाचा,शिशाचा एक गोलाकार चेंडू, वितळला जातो आणि तीन गोलाकार बॉलमध्ये पुनर्निर्मित केला जातो. या दोन चेंडूंचा व्यास अनुक्रमे \(\frac{3}{2}\) सेमी आणि 2 सेमी आहे. तिसऱ्या चेंडूचा व्यास शोधा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिले आहे:
गोलाकार चेंडूचा व्यास (D) = 3 सेमी
पहिल्या लहान चेंडूचा व्यास (D1) = 1.5 सेमी
दुसऱ्या लहान चेंडूचा व्यास (D2)= 2 सेमी
वापरलेली संकल्पना:
लहान गोलाकार चेंडूचे एकूण घनफळ = मोठ्या गोलाकार चेंडूचे घनफळ
वापरलेले सूत्र:
गोलाकार चेंडूचे घनफळ = (4/3) × π × R3
गणना:
तिसऱ्या लहान गोलाकार चेंडूचा व्यास = D3 समजू
(पहिला लहान गोलाकार चेंडू + दुसरा गोलाकार चेंडू + तिसरा गोलाकार चेंडू) = मोठ्या गोलाकार चेंडूचे घनफळ
⇒ 4/3 π × (D1/2)3 + 4/3 π × (D2/2)3 + 4/3 π × (D3/2)3 = 4/3 π (D/2)3
⇒ 4/3 π × [(1.5/2)3 + (2/2)3 + (D3/2)3 ]= 4/3 π (3/2)3
⇒ [(3.375/8) + 1 + (D3/2)3 ] = 3.375
⇒ (D3/2)3 = 2.375 - (3.375/8)
⇒ (D3/2)3 = (19 - 3.375)/8
⇒ D3 = 3√15.625 = 2.5
∴ योग्य उत्तर 2.5 आहे.
Last updated on Jun 13, 2025
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