Class 11

Fluid Mechanics and Surface Tension question bank (Physics)

Practice 2,222 free Class 11 Physics - Fluid Mechanics and Surface Tension questions with answers and step-by-step solutions.

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Q1.

Density of ice is $\rho$ and that of water is $\sigma$. What will be the decrease in volume when a mass $M$ of ice melts?

(A)

$\frac{M}{\sigma - \rho}$

(B)

$\frac{\sigma - \rho}{M}$

(C)

$M \left( \frac{1}{\rho} - \frac{1}{\sigma} \right)$

(D)

$\frac{1}{M} \left( \frac{1}{\rho} - \frac{1}{\sigma} \right)$

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Q2.

Equal masses of water and a liquid of density $2 \ g/cm^3$ are mixed together. The density of the resulting mixture is ........ $g/cm^3$.

(A)

$2/3$

(B)

$4/3$

(C)

$3/2$

(D)

$3$

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