Quartz crystal in quartz watches work on the principle called?? March 31, 2022March 31, 2022 administrator A. Photoelectric effectB. Stark effectC. Thermionic effectD. Piezo-electric effectCheck AnswerD. Piezo-electric effect Share the PostRelated Posts:If A completes a particular work in 8 days and B the…A can do a work in 15 days and B in 20 days. If they…A, B and C can do a piece of work in 20, 30 and 60…In a regular week, there are 5 working days and for…A alone can do a piece of work in 6 days and B alone…A machine P can print one lakh books in 8 hours,…