AP EAMCET · PHYSICS · Thermal Properties of Matter
A metal sphere immersed in water weighs \(w_1\) at \(0^{\circ} \mathrm{C}\) and \(w_2\) at \(50^{\circ} \mathrm{C}\). The coefficient of cubical expansion of the metal is less than that of water. Then
- A \(W_1>W_2\)
- B \(W_1 < W_2\)
- C \(W_1=W_2\)
- D \(W_1=2 W_2\)
Answer & Solution
Correct Answer
(B) \(W_1 < W_2\)
Step-by-step Solution
Detailed explanation
Apparent weight of object in water, \[ \begin{aligned} & w \propto \frac{\text { density of object (sphere) }}{\text { density of water }} \\ & w \propto \frac{d_s}{d_w} \end{aligned} \] As, cubical expansion \((Y)\) of metal is less than water, thats why ratio of density of…
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