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.Management Sciences
Category: Waves
The velocity of sound in air would become double than its velocity at 0°C at temperature ?
A. 313°C
B. 586°C
C. 819°C
D. 1172°C
The distance between any two consecutive crests or troughs is called____________________?
A. frequency
B. period
C. Wave length
D. phase difference
It is possible to distinguish between transverse and longitudinal waves form the property of __________________?
A. refraction
B. polarization
C. interference
D. diffraction
According to Newton sound travel in air under the conditions of_____________________?
A. adiabatic
B. isothermal
C. isobaric
D. isochoric
Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe?
A. One
B. Two
C. Four time
D. None of these
The periodic alternation of sound between maximum and minimum loudness are called___________________?
A. silence zone
B. interference
C. beats
D. resonance
The number of beats produced per second is equal to____________________?
A. the sum of the frequencies of two tuning forks
B. the difference of the frequencies of two tuning forks
C. the ratio of the frequencies of two tuning forks
D. the frequency of either of the two tuning forks
Beats are the results of____________________?
A. diffraction of sound waves
B. constructive and destructive interference
C. polarization
D. destructive interference
A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ?
A. 1/4f
B. 1/2f
C. frequency lower than 20 Hz
D. 2f
When the source of sound moves away form a stationary listener then ______________ occurs?
A. an apparent increase in frequency
B. an apparent decrease in frequency
C. an apparent decrease in wavelength
D. no apparent change in frequency
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