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किसी वस्तु का द्रव्यमान किग्र तथा आयतन 1.65 मीटर`""^(3)` है | सार्थक अंकों का ध्यान रखते हुए वस्तु का घनत्व ज्ञात कीजिए |

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प्रश्ननुसार वस्तु का द्रव्यमान = 3.6 किग्रा, वस्तु का आयतन `=1.65 मीटर^3`
यँहा वस्तु के द्रव्यमान में न्यूनतम सार्थक अंक है | अतः वस्तु के घनत्व में भी दो ही सार्थक अंक होने चहिए |
`"वस्तु का घनत्व" = ("द्रव्यमान" )/("आयतन" )=(3.6 किग्रा )/(1.65 मीटर^3)`
= 2.18188 " किग्रा- मीटर " ^(-3)`
`2.2 " किग्रा- मीटर " ^(-3)`

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