Sound Waves and Properties
Quiz covering sound wave properties including frequency, amplitude, Doppler effect, noise pollution, ultrasonic applications, and hearing ranges
Questions
A bird makes a high-pitched sound, whereas a lion makes a low-pitched roar. Which of the following statements is true?
- The sound produced by a bird has larger amplitude than the sound produced by a lion.
- The sound produced by a bird has higher frequency than the sound produced by a lion.
- The sounds produced by a bird and a lion have the same frequency.
- The sounds produced by a bird and a lion have the same amplitude.
In Doppler effect, when the sound moves towards the receiver at rest, the frequency of sound heard will
- increase
- decrease
- remain the same
- None of these
Which health problem is not caused due to noise pollution?
- Lack of sleep
- Hypertension
- Anxiety
- Low blood pressure
How can tree plantation reduce noise pollution in residential areas?
- Oxygen released by trees absorbs sound waves.
- Trees help in creating vacuum so that sound can’t travel.
- Trees cut down the sound reaching the residents by absorbing it.
- Leaves of trees reflect sound waves and reduce noise.
Which of the following measures is not taken to reduce noise pollution in residential areas?
- Plantation of trees
- No noise producing industries
- Maximum use of automobile horns
- Running television and music system at low volume
What is the frequency range of hearing in dogs?
- 20–10,000 Hz
- 20–20,000 Hz
- 15-50,000 Hz
- 60–65,000 Hz
Which principle is employed by the traffic police to measure the speed of the vehicles?
- Resonance
- Doppler effect
- Beats
- Treble
A group of sound waves of low pitch is called as
- resonance
- beats
- bass
- treble
Sounds having different frequencies are listed below. Which of the following sounds will be inaudible?
- 10 kHz
- 18,000 Hz
- 15 Hz
- 25 Hz
The propagation of wave transfers
- energy only
- matter only
- mass at times and energy at other times
- both energy and mass simultaneously
In which of the following applications can ultrasonic waves not be used?
- Sonar
- Echocardiography
- Detection of flaws in steel beams
- Radar
Which of the following is true about the speed of sound?
- It depends on the source from which it is generated.
- It remains constant under all conditions.
- It depends on the type of wave generated.
- It depends on the properties of medium through which it is propagating.
Which of the following types of waves are emitted by bats to locate their food?
- Infrasonic waves
- Ultrasonic waves
- Ultraviolet waves
- Reverberation waves
Which of the following is not a use of ultrasound?
- Breaking small stones in kidneys
- Locating underwater objects
- Cleaning odd-shaped parts and electronic components
- Joining cracks and flaws in metal blocks