Questions
A 2 cm thick slab of commercial thermocole, 100 cm2 in cross-section and having thermal conductivity 2 x 10-4 cal sec-1 cm-1 (Co)-1 has insulating regions differing by 100°C.
The quantity of heat flowing through it in a day will be:
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a
20.4 kcal
b
43.2 kcal
c
86.4 kcal
d
63.6 kcal
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Correct option is C
Use dQdt=KA(T1-T2)lSimilar Questions
Water can be heated in a cup of paper because:
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