Question

Cesium-silver oxide cells are sensitive to the near infrared wavelengths.

(a) True

(b) False

This question was addressed to me in an internship interview.

This key question is from Photoelectric Transducers in section Physiological Transducers of Biomedical Instrumentation

Answer 1

Correct choice is (a) True

The explanation is: Cesium-silver oxide cells are sensitive to the near infrared wavelengths. Potassium silver oxide and cesium-antimony cells have maximum sensitivity in the visible and ultraviolet regions. The spectral response also depends partly on the transparency to different wavelengths of the medium to be traversed by the light before reaching the cathode.