Q1 · medium · AI-verified
In a closed organ pipe, the fundamental frequency is 100 Hz. What is the frequency of the first overtone?
- 200 Hz
- 300 Hz
- 150 Hz
- 400 Hz
Q2 · hard · AI-verified
The speed of sound in air is 340 m/s. Two tuning forks produce 5 beats per second. If the frequency of one fork is 500 Hz, what is the wavelength of the wave produced by the other fork (assuming its frequency is higher)?
- 0.645 m
- 0.653 m
- 0.680 m
- 0.673 m
Q3 · hard · AI-verified
In a closed organ pipe of length 0.85 m, the frequency of the third harmonic (third overtone) is (speed of sound = 340 m/s):
- 300 Hz
- 500 Hz
- 200 Hz
- 100 Hz
Q4 · medium · AI-verified
A source of sound moves towards a stationary observer with velocity vs = 34 m/s. If the actual frequency of the source is 500 Hz and speed of sound is 340 m/s, what is the observed frequency?
- 459 Hz
- 550 Hz
- 476 Hz
- 500 Hz
Q5 · easy · AI-verified
Which of the following waves requires a material medium to propagate?
- X-rays
- Light waves
- Sound waves
- Radio waves