What is the speed of a wave with a wavelength of 3 point 0 m and a frequency of 0 point 1 Hz ?
Answer
A
30 meters per second
B
0.3 meters per second
C
3.1 meters per second
D
0.03 meters per second
Explanation
Wave speed equals wavelength multiplied by frequency: v = λf. Using 3.0 m and 0.1 Hz gives v = 3.0 × 0.1 = 0.3 m/s. The correct choice is 0.3 meters per second.
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