State the principle of superposition of waves and illustrate it schematically.
Whenever two or more waves travelling through the same medium at the same time pass through each other, the net displacement of the medium at any point in space-time is simply given by the sum of the individual wave displacements.An easy way to illustrate this schematically would be by sketching both constructive and destructive cases using sine and cosine waves. More complicated waveforms could them be later also considered (square, triangular, etc...).
PV
Related Physics A Level answers
All answers ▸An unknown capacitor is charged to 6v, its maximum value, then discharged through a 1k ohm resistor. If the capacitor voltage is 3v, 0.3 seconds after starting to discharge, what is the capacitance of the unknown capacitor?
A golf ball is hit at angle θ to the horizontal, with initial velocity u. Stating an assumption, show that the horizontal distance travelled by the ball is directly proportional to u^2.
Why are electron volts used instead of Joules in Quantum Phenomena and how do you convert between the two?
A 10m long uniform beam is pivoted in its centre. A 30kg point mass is placed on one end of the beam. Where must a 50kg mass be placed in order to balance the beam?