Q139 / 160 · TS EAMCET 2021 (05 Aug Shift 2) · Physics

Thermopile Bolometer is used to detect

A
Ultraviolet radiation
B
$X$ -rays
C
Gamma radiation
Correct answer
D
Infrared radiation

Solution

Thermopile is based on thermoelectric effect, which detects voltage due to temperature difference between two dissimilar metal. It i sused to detect infrared radiation.

Hence, the correct answer is option: 'D'.

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