935Every Day ScienceMedium
Quartz crystal in quartz watches work on the principle called?
AThermionic effect
BPiezo-electric effect
CNone of these
DStark effect
EPhotoelectric effect
Correct answer
B. Piezo-electric effect
Explanation
Piezo-electric effect is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.