Thermal Properties of Matter questions
823 published questions with worked solutions.
- The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by
- According to Newton's law of cooling, the rate of cooling of a body is proportional to ( )^n, where is the difference of the...
- If the temperature of the sun were to increase from T to 2T and its radius from R to 2R, then the ratio of the radiant energy...
- The thermistors are usually made of
- Time taken by a 836 W heater to heat one litre of water from 10^ to 40^ is
- Assuming the sun to be a spherical body of radius R at a temperature of TK, evaluate the total radiant power, incident on Earth,...
- Thermopile is used for
- A thermocouple cannot be preferred to use as thermometer above this temperature
- Thermopile is used to
- Thermoelectric pyrometers are used for measuring
- Neutral temperature of thermocouple is depends upon :
- What will be the temperature of cold junction if emf induced in thermocouple changes its direction at 600 K and neutral...
- Thermo emf is given by the equation e = at - 0.5 ,bt^2, where a = 16 and b = 0.08. If temperature of cold junction is 0^ then...
- The thermo e. m. f. of a thermocouple is 40 /K at room temperature. A galvanometer of resistance 50 is capable of detecting a...
- At room temperature, the thermo e. m. f of copper-constantan is 50 /^ . The smallest temperature difference that can be measured...
- The neutral temperature of a thermocouple is 350^ when the cold junction is 0^ . when the cold junction is immersed in a bath of...
- Heat is absorbed by a body but its temperature does not rise. The following statement explain the phenomena of
- Heat is
- Which of the following quantities must be determined in order to calculate the thermal capacity of a body? (Specific heat of the...
- Boiling water is changing in to steam. Under this condition, the specific heat of water is:
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