Physics : Heat And Thermodynamics
Q 2 / 11
The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. What is the reason ?
A
Ice is a bad conductor of heat
B
Since the surface of the lake is at the same temperature as the air, no heat is lost
C
The density of water is maximum at 4°C
D
None of the statements (a), (b) and (c) given above is correct