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WAEC - Physics (2011 - No. 31)

two sound waves have frequencies of 12Hz and 10Hz. Calculate their beats period
0.5s
1.0s
1.2s
2.0s

Penjelasan

\(f_1 - f_2 = \frac{1}{T}\)

12 - 10 = \(\frac{1}{2}\)

= 0.5

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