A. Number of loops
B. Tension in the string
C. Point where string is plucked
D. both A and C
A. Two times
B. Three times
C. Four time
D. Six time
The speed of sound in hydrogen is _____________ time than that in oxygen? Read More »
Physics Mcqs, Waves A. 281m/sec
B. 333m/sec
C. 340m/sec
D. all of the above
Newton estimated the speed of sound _____________________? Read More »
Physics Mcqs, Waves A. fopen = 2 fclosed
B. fclosed = 2fopen
C. fopen = fclosed
D. fopen = 1 / f closed
Which one is the correct relation for fundamental frequency of open and closed pipe ? Read More »
Physics Mcqs, Waves A. an apparent increase in frequency
B. an apparent decrease in frequency
C. an apparent decrease in wavelength
D. no apparent change in frequency
A. constructive interference
B. destructive interference
C. beats
D. resonance
Silence zone takes place due to____________________? Read More »
Physics Mcqs, Waves 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
The number of beats produced per second is equal to____________________? Read More »
Physics Mcqs, Waves A. frequency in the audible range
B. frequency is greater than 20 kHz
C. frequency lower than 20 Hz
D. all of above
Ultrasonic have__________________? Read More »
Physics Mcqs, Waves A. 313°C
B. 586°C
C. 819°C
D. 1172°C
A. Water
B. air
C. copper
D. ammonia
The velocity of sound is greatest in___________________? Read More »
Physics Mcqs, Waves