Physics · Optoelectronics
Which of the following statements are correct about non-contact temperature measurement using Infrared (IR) photodiodes/pyrometers? (A) They cause no risk of contamination or physical damage to the object surface. (B) For higher temperatures, IR photodiode devices have a longer life. (C) They cannot be used to measure the temperature of moving objects. (D) They are capable of measuring hazardous and physically inaccessible processes. Choose the correct answer from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(A), (B) and (C) only
- 2(B) and (C) only
- 3(A) and (D) only✓
- 4(B), (C) and (D) only
Correct answer
(A) and (D) only
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