The loss in the weight of a solid when immersed in a liquid at 0°C is W' and and at t°C is W. If the cubical expansion of the solid and the liquid are gamma s and gamma L respectively, then W is euqal to?
A) W'[1+(gamma s- gamma L) t]
B) W'[1-(gamma s- gamma L) t]
C) W'[(gamma s- gamma L) t]
D) W't(gamma s-gamma L)
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Correct answer is,(1+γ2dT1+γ1dT)If the initial volume is V0, Then the volumes of metal and mercury increase to V0(1+γ1dT) and V0(1+γ2dT) respectively.
OR
a piece of metal floats on mercury. The coefficient of volume expansion of metal and mercury are y1 and y2respectively. If their temprature is increased by dt, the fraction of the volume of metal submerged in mercury is increased by
1) (1 + y2dt/1 + y1dt) 2) (1 + y2dt/1 - y1dt)
3) (1 -y2dt/1 +y1dt) 4)y2/y1
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OR
a piece of metal floats on mercury. The coefficient of volume expansion of metal and mercury are y1 and y2respectively. If their temprature is increased by dt, the fraction of the volume of metal submerged in mercury is increased by
1) (1 + y2dt/1 + y1dt) 2) (1 + y2dt/1 - y1dt)
3) (1 -y2dt/1 +y1dt) 4)y2/y1
Please mark my answers
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