Question
Download Solution PDF20 सेमी व्यासाच्या काचेच्या वृत्तचित्तीमध्ये 9 सेमी उंचीपर्यंत पाणी असते. त्यात 8 सेंमी काठाचा एक धातूचा घन पूर्णपणे बुडविला जातो. उंचीची (1 दशांश स्थानापर्यंत योग्य) गणना करा जिथपर्यंत वृत्तचित्तीध्ये पाणी वाढेल.
(π = 3.142 घ्या).
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेल्याप्रमाणे:
20 सेमी व्यासाच्या काचेच्या वृत्तचित्तीमध्ये 9 सेमी उंचीपर्यंत पाणी असते. त्यात 8 सेंमी काठाचा एक धातूचा घन पूर्णपणे बुडविला जातो.
सूत्र:
वृत्तचित्तीचे घनफळ = Πr2h
घनाचे घनफळ = a3
गणना:
वृत्तचित्तीचा व्यास = 20 सेमी
⇒ वृत्तचित्तीची त्रिज्या = 10 सेमी
आता, विस्थापित पाण्याचे घनफळ (ज्यामुळे वृत्तचित्तीमध्ये पाणी वाढेल) = घनाचे घनफळ
∴ πr2h = a3
⇒ 3.142 × 10 × 10 × h = 83
⇒ 3142 × 1/10 × h = 512
⇒ h = 5120/3142
⇒ h = 1.62 सेमी ~ 1.6 सेमी
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