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An ice cube containing a galss ball is f...

An ice cube containing a galss ball is floating on the surface of water contained in a trough. The whole of the ice melts, the level of water in the trough

A

rises

B

falls

C

remains unchanged

D

first falls and then rises

Text Solution

Verified by Experts

The correct Answer is:
B
Here, weight of water displaced = wweight of ice cube + weight of glass ball
When ice melts, the glass ball will be immersed in water. Since the ball immersing in water will displace the water equal to its volume which will be less than the volume of the water having weight equal to that of glass ball. As a result of which, the water level in the trough will fall.
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