PHYSICS-Stationary Waves Questions and Answers
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Q41
In a vibrating string, the points of maximum displacement are called:
Answer: Option B
Explanation: Antinodes are points of maximum displacement.
Q42
The wavelength of stationary waves is determined by:
Answer: Option C
Explanation: Wavelength depends on boundary conditions and length of medium.
Q43
For a pipe closed at one end, the fundamental node occurs at:
Answer: Option B
Explanation: Closed end is always a displacement node.
Q44
The phase difference between two particles lying on the same wavefront in a stationary wave is:
Answer: Option A
Explanation: Particles on same wavefront are in phase in stationary waves.
Q45
When the tension in a string is increased, the frequency of stationary waves:
Answer: Option A
Explanation: Frequency increases with increase in tension.
Q46
The number of harmonics present in an open organ pipe is:
Answer: Option C
Explanation: Open pipes contain all harmonics (1,2,3,...).
Q47
In stationary waves, the strain is maximum at:
Answer: Option B
Explanation: Strain is maximum at nodes where particles are stationary.
Q48
The velocity of propagation of wave in a string is given by:
Answer: Option A
Explanation: Wave velocity depends on tension and linear density.
Q49
For a given string, the fundamental frequency is 256 Hz. The frequency of second harmonic is:
Answer: Option C
Explanation: Second harmonic has twice the fundamental frequency.
Q50
Stationary waves are produced in a string when its length is:
Answer: Option B
Explanation: Stationary waves form when string length is multiple of half wavelength.