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Question

A piece of ice is floating in a beaker containing water. When ice melts, the temperature falls from 20C to 4C and the level of water:
  1. Remains unchanged
  2. Falls
  3. Rises
  4. Change erratically

A
Falls
B
Rises
C
Change erratically
D
Remains unchanged
Solution
Verified by Toppr

The density of water is maximum at
4C. Let 'x' amount of ice has
been melted. Then the volume of
water at 20C displaced
to float that 'x' amount of ice
will be higher than the volume
of water that has been gained
after melting of ice as both volumes
have same masses 'x' but the density
is higher at 4C. consequently, the
water level falls
Option B is correct

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