M

Mr. Dubey • 52.30K Points
Coach 

Q. Which of the following is the principle of Golay cell which is used as a detector in IR 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
Correct : Option (A)

Explanation: 
 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.

Share

Discusssion

Login to discuss.

Be the first to start discuss.

Related MCQs

Q. The Bit extension of the register is denoted with the help of symbol.

Q. IPSec is designed to provide security at the _________

Q. Which of the following is a predictive model?

Q. selectively screen messages.

Q. ……………. Is a pile in which items are added at one end and removed from the other.

Q. has in its stack.

Q. Which of the following is a combination of LSD and MSD radix sorts?

Q. When is the Many to One model at an advantage?

Q. Hub is to switch/ bridge since it repeats data even to the unwanted connections.

Q. Data compression includes