phy101 solved quiz for midterm paper fall 2010 december 3

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Question # 1 of 10 ( Start time: 03:57:12 PM ) Total Marks: 1
The speed of a sound wave is determined by:
Select correct option:

its amplitude
its intensity
the transmitting medium
number of harmonics present
Question # 2 of 10 ( Start time: 03:58:13 PM ) Total Marks: 1
Take the speed of sound to be 340m/s. A thunder clap is heard about 3 s after the lightning is seen. The source of both light and sound is:
Select correct option:

moving overhead faster than the speed of sound
emitting a much higher frequency than is heard
emitting a much lower frequency than is heard
about 1000m away
Question # 3 of 10 ( Start time: 03:59:37 PM ) Total Marks: 1
If the speed of sound is 340m/s a plane flying at 400m/s creates a conical shock wave with an apex half angle of:
Select correct option:

0 (no shock wave)
32?
40?
58?
Question # 4 of 10 ( Start time: 04:01:00 PM ) Total Marks: 1
Two sound waves are traveling through a container of unknown gas. Wave A has a wavelength of 1.2 m. Wave B has a wavelength of 3.6 m. The frequency of wave B must be __________ the frequency of wave A.
Select correct option:

One-ninth
One-third
The same as
Three times larger than
Question # 6 of 10 ( Start time: 04:03:07 PM ) Total Marks: 1
Two sound waves are traveling through a container of unknown gas. Wave A has a wavelength of 1.2 m. Wave B has a wavelength of 3.6 m. The velocity of wave B must be __________ the velocity of wave A.
Select correct option:

One-ninth
One-third
The same as
Three times larger than
Question # 7 of 10 ( Start time: 04:04:27 PM ) Total Marks: 1
The speed of a wave depends upon (i.e., is causally affected by)...
Select correct option:

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