Question
Download Solution PDF5000 kg/m3 घनत्व वाले धातु के टुकड़े का आयतन (cm3 में) ज्ञात करें और जिसका भार 10.8 N है। (g =10m/s2 का प्रयोग करें)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना:
भार:
- यह गुरुत्वाकर्षण बल है जो पिंड को पृथ्वी के केंद्र की ओर आकर्षित करता है।
- इसका मात्रक न्यूटन (N) है।
जहाँ, W = पिंड का भार, m = पिंड का द्रव्यमान, g = गुरुत्वाकर्षण के कारण त्वरण।
घनत्व:
- इसे किसी वस्तु के द्रव्यमान के आयतन के अनुपात के रूप में परिभाषित किया जाता है।
- इसका मात्रक kg/m3 होता है।
जहाँ,
गणना:
दिया गया है:
धातु का घनत्व, ρ = 5000 kg/m3
भार, W = 10.8 N
g = 10 m/s2
अब,भार (W) = mg
जहाँ, m धातु का द्रव्यमान है।
अब,
आयतन (v) = 0.000216 m3 = 216 cm3
इस प्रकार, विकल्प (1) सही उत्तर है।
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