A. frequency in the audible range
B. frequency is greater than 20 kHz
C. frequency lower than 20 Hz
D. all of above
Related Mcqs:
- According to Newton sound travel in air under the conditions of_____________________?
A. adiabatic
B. isothermal
C. isobaric
D. isochoric - Velocity of sound in vacuum is ____________________?
A. 332 ms-1
B. 320 ms-1
C. Zero
D. 224 ms-1 - 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 - Which one is the correct relation for fundamental frequency of open and closed pipe ?
A. fopen = 2 fclosed
B. fclosed = 2fopen
C. fopen = fclosed
D. fopen = 1 / f closed - When two identical traveling waves are superimposed, the velocity of the resultant wave__________________?
A. decreases
B. increases
C. remains unchanged
D. becomes zero - If stretching force T of wire increases, then its frequency __________________?
A. decreases
B. increases
C. remains the same
D. any of above - The normal ear is the most sensitive in the frequency range___________________?
A. 20000 to 30000 hertz
B. 10 to 20 hertz
C. 2000 to 4000 hertz
D. 6000 to 8000 hertz - 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 - In open organ pipe___________________?
A. only even harmonics are present
B. only odd harmonics are present
C. both even and odd harmonics are present
D. selected harmonics are present - The dimension of elastic modulus is ___________________ ?
A. ML-1T-2
B. ML-2T-2
C. MLT-2
D. ML2T-2
