WAEC - Physics (2011 - No. 31) | ExamPlay

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

Giải thích

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

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

= 0.5

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