When a wave is reflected from a denser medium, the change in phase is
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On reflection at a denser medium, change of phase (radian)
A progressive wave is reflected by a rigid wall at . Then the reflected wave can be represented by
)
for the wave progressing along the -axis and for the reflected wave, .
But the position of the rigid wall is at .
For the given wave, its reflected wave
A string is clamped at both the ends and it is vibrating in its harmonic. The equation of the stationary wave is . The length of the string is: (All quantities are in SI units.)
Given,
So and
or Now, using
Which of the following changes at an antinode in a stationary wave?
Density only
Pressure only
Both pressure and density
Neither pressure nor density
Consider the three waves and as
Which of the following represents a standing wave?
Standing waves are produced when two waves propagate in opposite direction As are propagating in +ve -axis & -ve -axis so, will represent a standing wave.
A string fixed at both ends is vibrating in two segments. The wavelength of the corresponding wave is
If vibrations of a string are to be increased by a factor of two, then tension in the string must be made
half
four times
twice
eight times
The fundamental frequency of a closed end organ pipe is . Its length is doubled and radius is halved. Its frequency will become nearly
Frequency does not depend upon radius. As length is doubled, fundamental frequency becomes half.
The fundamental frequency of an organ pipe is . If its length is increased, then frequency will
decrease
increase
remains same
cannot be predicted
What is the effect of increase in temperature on the frequency of sound produced by an organ pipe?
increases
decreases
no effect
erratic change
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