JEE Main202224 Jun 2022Evening ShiftPhysicsWaves and SoundActual
Two travelling waves of equal amplitudes and equal frequencies move in opposite directions along a string. They interfere to produce a stationary wave whose equation is given by y = 10 cos π x sin 2 π t T cm . The amplitude of the particle at x = 4 3 cm will be _____ cm .
Correct answer
0
Step-by-step solution
Amplitude is the maximum displacement from the mean position, for that sin 2 π t T = 1 Therefore, A = 10 cos 4 3 π = 10 × 1 2 =   5   cm