Superposition of Waves
Physics ⇒ Waves and Sound
Superposition of Waves starts at 10 and continues till grade 12.
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See sample questions for grade 12
A sound wave of frequency 500 Hz interferes with another of frequency 502 Hz. What is the time interval between successive beats?
A string fixed at both ends vibrates in its second harmonic. How many nodes and antinodes are present?
A string of length 1 m is fixed at both ends and vibrates in its fundamental mode. If the speed of the wave is 200 m/s, what is the frequency?
A wave y₁ = 3 sin(ωt) and another wave y₂ = 4 sin(ωt) superpose. What is the amplitude of the resultant wave?
Describe the difference between constructive and destructive interference.
Describe what happens when two waves of different frequencies and amplitudes superpose.
Explain why beats are heard when two tuning forks of slightly different frequencies are sounded together.
Explain why the amplitude at a node is always zero in a stationary wave.
If two sound waves of frequencies 256 Hz and 260 Hz are sounded together, what is the beat frequency produced?
If two waves of amplitude A and B superpose at a point and the phase difference between them is 90°, what is the resultant amplitude?
If two waves of amplitudes 3 cm and 4 cm superpose in phase, what is the resultant amplitude?
If two waves of equal amplitude interfere destructively, what is the resultant amplitude?
If two waves of the same frequency and amplitude are 180° out of phase, what type of interference occurs?
If two waves of the same frequency and amplitude are in phase, what is the amplitude of the resultant wave?
State the principle of superposition of waves.
Two waves y₁ = 5 sin(ωt) and y₂ = 5 sin(ωt + π) superpose. What is the resultant amplitude?
When two waves of equal amplitude and frequency travel in opposite directions, what type of wave is formed?
