Heat questions | form five Physics

(5658) Question Category: Short answers

For each of the following cases elaborate:
(i) two solutions for thermal pollution.
(ii) three disadvantages of tidal energy.

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(5659) Question Category: Short answers

What are the three constituents of outer zone of the earth?

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(5660) Question Category: Mathematical Calculation

In a certain thermocouple thermometer the e.m.f. Is given by E=a	heta+frac{1}{2}b	heta^2 where 	heta is the temperature of hot junction. If a=10mV^{o}C^{-2}, b=-frac{1}{20}mV^{o}C^{-1}and the cold junction is at 0^{o}C, calculate the neutral temperature.

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(5661) Question Category: Short answers

What is meant by thermal radiation?

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(5662) Question Category: Short answers

Briefly explain why forced convection is necessary for excess temperature less than 20K​?

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