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10-2.Transmission of Heat
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તળાવની ઉપરની સપાટીનું તાપમાન $2^{\circ} C$ છે તો તેના તળીયાનું તાપમાન ............ $^{\circ} C$ હોય
A
$2$
B
$3$
C
$4$
D
$1$
Solution
(c)
The densest layer of water will be at bottom. The density of water is maximum at $4^{\circ}\,C$. So the temperature of bottom of lake will be $4^{\circ}\,C$.
Standard 11
Physics
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