Q1212
The working of the quartz crystal in the watch is based on the
A.
Piezo - electric Effect
AnswerB.
Edison Effect
C.
Photoelectric Effect
D.
Johnson Effect
Answer: Option A
Solution
Answer: Option A
Solution:
The quartz crystal oscillates (vibrates back and forth) at a precise frequency: exactly 32768 times each second. This is due to Piezoelectric Effect. Piezoelectric Effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress.