two sound waves have frequencies of 12Hz and 10... - WAEC Physics 2011 Question
two sound waves have frequencies of 12Hz and 10Hz. Calculate their beats period
A
0.5s
B
1.0s
C
1.2s
D
2.0s
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Correct Option: A
(f_1 - f_2 = \frac{1}{T})
12 - 10 = (\frac{1}{2})
= 0.5
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