MEDIUM
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What is end correction? Is the end correction same for a pipe open at both ends and closed at one end?

Important Questions on Waves

MEDIUM
A wire of length L and mass per unit length 6.0×10-3 kg m-1 is put under tension of 540 N. Two consecutive frequencies that it resonates at are: 420 Hz and 490 Hz. Then L in meters is :
MEDIUM
A string is clamped at both the ends and it is vibrating in its 4th harmonic. The equation of the stationary wave is y=0.3sin0.157x cos(200πt). The length of the string is
(All quantities are in SI units.)
HARD
Find the wrong statement form the following about the equation of stationary wave given by Y=0.04cosπxsin50πt m where t is in second. Then for the stationary wave.
HARD
Explain the formation of stationary waves by the analytical method. Show that nodes and antinodes are equally spaced in stationary waves.
HARD
The total length of a sonometer wire fixed between two bridges is 110 cm. Now, two more bridges are placed to divide the length of the wire in the ratio 6:3:2. If the tension in the wire is 400 N and the mass per unit length of the wire is 0.01 kg m-1, then the minimum common frequency with which all the three parts can vibrate, is
EASY
A standing wave can be produced by combining
MEDIUM
If n1, n2 and n3 are the fundamental frequencies of three segments into which a string is divided, then the original fundamental frequency n of the string is given by:
HARD
The end correction of a resonance column is 1 cm. If the shortest length resonating with the tuning fork is 10 cm, the next resonating length should be
MEDIUM
A granite rod of 60 cm length is clamped at its middle point and is set into longitudinal vibrations. The density of granite is 2.7×103 kg m-3 and its Young's modulus is 9.27×1010 Pa. What will be the fundamental frequency of the longitudinal vibrations?
MEDIUM
A one metre long (both ends open) organ pipe is kept in a gas that has double the density of air at STP. Assuming the speed of sound in air at STP is 300 m/s, the frequency difference between the fundamental and second harmonic of this pipe is __________ Hz.
EASY
A string is vibrating in its fifth overtone between two rigid supports 2.4 m apart. The distance between successive node and antinode is
HARD
Explain the formation of stationary waves in stretched strings and hence deduce the law of transverse waves in stretched strings.
MEDIUM
A closed organ pipe has a fundamental frequency of 1.5kHz. The number of overtones that can be distinctly heard by a person with this organ pipe will be (Assume that the highest frequency a person can hear is 20,000Hz).
EASY
The equation of a stationary wave is y=2 sinπx15cos48πt. The distance between a node and its next antinode is
EASY
The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an organ pipe open at both the ends. The length of the organ pipe open at both the ends is
MEDIUM
A pipe of 1 m length is closed at one end. Taking the speed of sound in air as 320 m s-1, the air column in the pipe cannot resonate for the frequency in Hz
EASY
The fundamental frequency of an air column in a pipe closed at one end is 100 Hz. If the same pipe is open at both the ends, the frequencies produced in Hz are
MEDIUM
A wire of length 2L, is made by joining two wires A and B of same length but different radii r and 2r and made of the same material. It is vibrating at a frequency such that the joint of the two wires forms a node. If the number of antinodes in wire A is p and that in B is q then ratio p:q is:
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EASY
In sonometer experiment, the string of length L under tension vibrates in second overtone between two bridges. The amplitude of vibration is maximum at
MEDIUM

Show that only odd harmonics are present as overtones in the case of an air column vibrating in a pipe closed at one end.