Adaptive Practice
Waves
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⏱ 0:30
Easy
What is the SI unit of frequency of a wave?
Easy
Which of the following waves is a transverse wave?
Medium
If the wavelength of a wave is doubled and its frequency is halved, what happens to its speed?
Easy
A wave travels 300 m in 2 seconds. What is its speed?
Medium
Which phenomenon explains the bending of waves around obstacles?
Hard
In a progressive wave described by y = 0.05 sin(20πt - 0.1πx), what is the wavelength?
Medium
Two waves of the same frequency and amplitude interfere constructively. What is the resultant amplitude?
Hard
The speed of sound in air at 0°C is approximately 331 m/s. What will be the speed at 27°C? (Use v = v0√(T/273))
Easy
Which of the following statements about longitudinal waves is TRUE?
Medium
A string fixed at both ends vibrates in its third harmonic with frequency 180 Hz. What is the fundamental frequency?