If the speed of sound in air is 340 m/sec. What is the wavelength of a 1-KHz sound wave?
Correct answer: C. 0.340m
- A. 3.40m
- B. 2.94m
- C. 0.340m
- D. 0.294m
Explanation
According to the v=fλ v= 340m/s f= 1 x 103 Hz Hence λ= v/f = 340 / 1x103= 0.34 m (option C is the correct option)
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About Speed of Sound
The speed of sound depends on the properties of the medium, including its elasticity and density, and in gases it varies mainly with temperature. Questions connect speed with frequency and wavelength, compare sound in solids, liquids and gases, and distinguish the speed of propagation from the oscillating particles' motion.
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