Adaptive Practice
Sound
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Question 1 of 10
⏱ 0:30
Easy
What is the unit of frequency of a sound wave?
Easy
Which of the following is the correct range of audible sound frequency for humans?
Easy
Sound cannot travel through which of the following?
Medium
The speed of sound in air at room temperature (about 25°C) is approximately:
Easy
Which property of sound determines its pitch?
Medium
Why does sound travel faster in solids than in gases?
Easy
Which Indian musical instrument produces sound by the vibration of stretched strings?
Medium
What happens to the wavelength of sound when its frequency increases, assuming speed is constant?
Hard
Which phenomenon explains the change in pitch of a sound when the source or observer is moving?
Hard
In an echo experiment, if the minimum time interval between the original sound and echo to hear distinct echo is 0.1 seconds, what is the minimum distance of the reflecting surface from the source? (Speed of sound = 340 m/s)