The plane wave is described by the equation
30 ms-1
40 ms-1
If equation of a sound wave is
0.1 unit
0.2 unit
0.3 unit
2 unit
For a wave propagating in a medium, identify the property that is independent of the others
Velocity
Wavelengths
Frequency
All these depend on each other
Speed of recession of galaxy is proportional to its distance
Directly
Inversely
Exponentially
None of these
In an experiment with sonometer , a tuning fork of frequency with a length of 25 cm and another tuning fork resonates with a length of 16 cm. Tension of the string remaining constant the frequency of the second tuning fork is
163.84 Hz
400 Hz
320 Hz
204.8 Hz
An organ pipe closed at one end has fundamental frequency of 1,500 Hz. The maximum number of overtones generated by this pipe, which a normal person can hear is.
12
9
6
4
A tube closed at one end containing air produces fundamental note of frequency 512 Hz. If the tube is open at both the ends, the fundamental frequency will be.
256 Hz
768 Hz
1,024 Hz
1,280 Hz
A source of frequency 240 Hz is moving towards an observer with a velocity of 20 ms-1. The observer is now moving towards the source with a velocity of 20 ms-1. Apparent frequency heard by observer, if velocity of sound is 340 ms-1 is
240 Hz
270 Hz
330 Hz
360 Hz
The velocities of sound at the same temperature in two monoatomic gases of densities of are respectively. If then the value of is.
1/4
1/2
2
When temperature increases, the frequency of a tuning fork
Increases
decreases
increases or decreases depending on the material
remains the same