Quiz on Waves

Question 1: Which one of the following waves is a longitudinal wave?

Water waves
Sound waves
Electromagnetic waves
None of the above.

Question 2: What is the period of an ultrasound in a tissue in which the speed of sound is 1600 m/s
and the wavelength of the scanner is 4× 10^{− 4} m.

2.5 10^{− 7 s}
2.5 10^{− 6 s}
3.5 10^{− 7 s}
2.5 10^{− 8 s}

Question 3: If the speed of a wave remains constant, what happens to the frequency when the wave length is halved?

Doubled
Halved
Same
Zero

Question 4: Based on the wave below having a frequency of 50 Hz, find its speed.
Wavelength-2

200 m/s

300 m/s

350 m/s

400 m/s

Question 5: The vibrations in a transvers wave move in a direction ________________ to the wave motion.

parallel
perpendicular
opposite
upward
downward

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Date of last modification: 2022