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Q: Which thermometer is preferred for rapidly changing temperature? तेजी से बदलते तापमान के लिए कौन–सा थर्मोमीटर पंसद किया जाता है?
  • A. Liquid in glass/कांच में द्रव
  • B. Gas thermometer/गैस थर्मोमीटर
  • C. Resistance thermometer/प्रतिरोध थर्मोमीटर
  • D. Thermo couple thermometer/ताप–युग्म थर्मोमीटर
Correct Answer: Option D - Principle of thermometer– The temperatur of a substance can be meausred by measuring (i) Increase in volume of a gas on heating at constant pressure. (ii) Increase in pressure of a gas on heating at constant volume. (iii) Increase in resistance of a conductor on heating. Gas thermometer, platinum resistance, thermometer, vapour pressure thermometers are not ideal for measuring changing temperatures. Thermocouple Thermometer– At thermocouple thermometer is formed by joining two dissimlar metals and kept at different temperatures and is ideal for measuring rapidly changing temperatures.
D. Principle of thermometer– The temperatur of a substance can be meausred by measuring (i) Increase in volume of a gas on heating at constant pressure. (ii) Increase in pressure of a gas on heating at constant volume. (iii) Increase in resistance of a conductor on heating. Gas thermometer, platinum resistance, thermometer, vapour pressure thermometers are not ideal for measuring changing temperatures. Thermocouple Thermometer– At thermocouple thermometer is formed by joining two dissimlar metals and kept at different temperatures and is ideal for measuring rapidly changing temperatures.

Explanations:

Principle of thermometer– The temperatur of a substance can be meausred by measuring (i) Increase in volume of a gas on heating at constant pressure. (ii) Increase in pressure of a gas on heating at constant volume. (iii) Increase in resistance of a conductor on heating. Gas thermometer, platinum resistance, thermometer, vapour pressure thermometers are not ideal for measuring changing temperatures. Thermocouple Thermometer– At thermocouple thermometer is formed by joining two dissimlar metals and kept at different temperatures and is ideal for measuring rapidly changing temperatures.