A.C. Sonometer
A wire under tension vibrates with a frequency of 450 per second. What would be the fundamental frequency if the wire were half as long, twice as thick and under one-fourth tension?
The equation of transverse wave in a string is: y = 8 sin [1.256x - 25.12t] cm. What is the amplitude of the wave?
Thermo emf of thermocouple depends on