(C) The relative humidity is defined as the ratio of the partial pressure of water vapour to the saturated vapour pressure of water at the same temper

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(C) The relative humidity is defined as the ratio of the partial pressure of water vapour to the saturated vapour pressure of water at the same temperature.Given:Partial pressure of water vapour $(P_W)$ = $0.012 \times 10^5 \, Pa$Saturated vapour pressure of water $(P_V)$ = $0.016 \times 10^5 \, Pa$Relative Humidity = $\frac{P_W}{P_V} \times 100\%$Relative Humidity = $\frac{0.012 \times 10^5}{0.016 \times 10^5} \times 100\%$Relative Humidity = $\frac{0.012}{0.016} \times 100\% = \frac{12}{16} \times 100\% = 0.75 \times 100\% = 75\%$.

Class 11 Physics Mechanical Properties of Fluids Mix Examples-Fluid Mechanics and Surface Tension

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The relative humidity on a day,when the partial pressure of water vapour is $0.012 \times 10^5 \, Pa$ at $12^{\circ}C$,is ......... $\%$. (Take the vapour pressure of water at this temperature as $0.016 \times 10^5 \, Pa$.)

AIIMS 1998 All AIIMS

A
$70$
B
$40$
C
$75$
D
$25$

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Mix Examples-Fluid Mechanics and Surface Tension

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$(C)$ The dam of a reservoir is made thick at the bottom	$(R)$ Surface tension
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The relative humidity on a day,when the partial pressure of water vapour is $0.012 \times 10^5 \, Pa$ at $12^{\circ}C$,is ......... $\%$. (Take the vapour pressure of water at this temperature as $0.016 \times 10^5 \, Pa$.)

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Why is skating possible on ice?

$Assertion :$ $A$ thin stainless steel needle can float on a still water surface.$Reason :$ Any object floats when the buoyancy force balances the weight of the object.

The human heart discharges $75 \ cc$ of blood per beat against a pressure of $10 \ cm$ of $Hg$. If the heart beats $72$ times per minute,calculate the power of the heart in $W$. (Given: density of $Hg = 13.6 \ g/cc$ and $g = 9.8 \ m/s^2$)

$A$ small air bubble is at the inner surface of the bottom of a beaker filled with cold water. Now,the water in the beaker is heated. The size of the bubble increases. The reason for this may be:

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