when the c4 key on a piano keyboard is pressed, a string inside the piano is struck by a hammer and begins vibrating back and fo
2 answers:
Answer:
260 Hz
Explanation:
The frequency of a sound wave is defined as the number of oscillation which is given in cycles per time. Frequency (f) is given by the formula ;
and it is measured in Hertz(Hz)
Given that;
a vibration is caused by a struck string in piano at 260 cycles and Time (T) = 1 seconds
Frequency (f) can be determined as; 260 cycles × 1 seconds
= 260 Hertz (Hz)
Hence, the frequency of the sound wave is 260 Hertz (Hz).
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