A guitar string, of length 0.9 m, sounds in its fundamental mode at
350 Hz when plucked. What is the
speed of sound in the string?
(a) 630 m/s (b) 194 m/s (c) 315 m/s (d) 388 m/s (e) 945 m/s
How many of the following statements regarding sound are true?
Intensity is proportional to the square root of the amplitude.
Perceived loudness depends on the logarithm of intensity of a sound.
Most musical instruments make use of frequencies of standing waves.
If you approach a sound-wave source with a higher velocity, you
hear higher frequencies.
(a) Only one (b) Only two (c) Only three (d) All four (e) None
In order for two objects to have the same temperature, they must
be in thermal equilibrium.
be able to melt the same amount of ice in contact in a
have the same amount of total energy.
expand in volume by the same amount as their temperature
is raised by a unit degree.
All of the above.
In Fig. 1 is a - (pressure-volume) phase
diagram of an ideal gas. Initially the - value of the ideal gas
is located at point at temperature . The gas slowly moves to
point . Then what is the new temperature of the gas at point