A

Admin • 802.91K Points
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Q. spectroscopy?

  • (A) expansion of gas upon heating
  • (B) increase in resistance due to an increase in temperature and vice versa
  • (C) temperature difference gives rise to a potential difference in the material
  • (D) decrease in resistance due to an increase in temperature
Explanation by: Admin
it is also known as pneumatic detector. the gases expand on heating and this in turn leads to the movement of a diaphragm just like in pneumatic sensors.

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