Loading...
Which of the following frequencies is beyond the human hearing range?
Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?
Assertion (A): Infrasonic waves are longitudinal waves of frequency greater than 20,000 Hz. Reason (R): The maximum frequency of audible sound waves is 20,000 Hz.
A person has a hearing range from 20 Hz to 20 kHz. What are the typical wavelengths of sound waves in air corresponding to these two frequencies? Take the speed of sound in air as 344 m s–1.
Give reasons for the following:
Usha observed waves of wavelength 1.0 mm propagating in air. What is their frequency? Given that speed of sound waves in air at room temperature is 340 m s⁻¹. Do these waves produce audible sound? Why or why not?
© 2026 PadhAiPro. This question is provided for educational purposes.
