EASY
Physics
IMPORTANT
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Which of the following functions represent a stationary wave? Here a, b and c are constants:

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Important Questions on Superposition and Standing Waves

EASY
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 3
A stationary wave set up on a string has the equation y=2 mmsin6.25 m-1xcosωt. This stationary wave is created by two identical waves, of amplitude A each moving in opposite directions along the string. Then,
EASY
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 4
A sinusoidal wave y1=asin(ωt-kx) is reflected from a rigid support and the reflected wave superpose with the incident wave y1. Assume the rigid support to be at x=0.
HARD
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 5
If the tension in a stretched string fixed at both ends is increased by 21%, the fundamental frequency is found to be changed by 15 Hz. Then, the
MEDIUM
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 6
Velocity of sound in air is 320 m/s. A pipe closed at one end has a length of 1 m. Neglecting the corrections, the air column in the pipe can resonate for sound of frequency
EASY
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 7

Select all the correct alternatives. Two identical straight wires are stretched so as to produce 6 beats per second when vibrating simultaneously. On changing the tension slightly in one of them, the beat-frequency remains unchanged. Denoting by T1, T2 the higher and the lower initial tensions in the strings, then it could be said that while making the above changes in tension.

MEDIUM
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 8
A loudspeaker that produces signals from 50 Hz to 500 Hz is placed at the open end of a closed tube of length 1.1 m. The lowest and the highest frequency that excites resonance in the tube are fi and fh respectively. The velocity of sound is 330 m s-1. Then
MEDIUM
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 9
Three simple harmonic waves, identical in frequency n and amplitude A moving in the same direction are superimposed in air in such a way, that the first, second and the third wave have the phase angles ϕ, ϕ+(π/2) and (ϕ+π), respectively at a given point P in the superposition Then as the waves progress, the superposition will result in
EASY
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 7 - Superposition and Standing Waves>Exercises>Q 10
A sound wave passes from a medium A to a medium
B. The velocity of sound in B is greater than that in A. Assume that there is no absorption or reflection at the boundary. As the wave moves across the boundary: