Verified Solution • 2025–26 Session moderate

QNEET-2013-Ph-1598: NEET 2013 Physics - Class 11 NEET-2013-Ph-1598 Solution: The density of water at \(20^ C\) is \(998\ {kg/m}^3\) and at…

The density of water at 20∘C20^\circ C is 998 kg/m3998\ \text{kg/m}^3 and at 40∘C40^\circ C is 992 kg/m3992\ \text{kg/m}^3. The coefficient of volume expansion of water is 3×10−4/∘C3 \times 10^{-4}/^\circ C 2×10−4/∘C2 \times 10^{-4}/^\circ C 6×10−4/∘C6 \times 10^{-4}/^\circ C 10×10−4/∘C10 \times 10^{-4}/^\circ C

Multiple Choice Options

  • A 3 ×\times _ 10 −- _ 4 / o C
  • B 2 ×\times _ 10 −- _ 4 / o C
  • C 6 ×\times _ 10 −- _ 4 / o C
  • D 10 ×\times _ 10 −- _ 4 / o C

Step-by-Step Verified Solution

From question, _ _ = (998 � 992) kg/m 3 = 6 kg/m 3 _ = 998 + 992 2 k g / m 3 = 995 k g / m 3 _ = m v _ _ _ _ = _ _ V V _ | _ _ _ | = | _ V V | _ Coefficient of volume expansion of water, 1 V _ V _ t = 1 _ _ _ _ t = 6 995 _ 20 � 3 _ 10 _ 4 / o C

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