JAMB - Physics (2024 - No. 69)
Two tuning forks of frequencies 6Hz and 4Hz respectively are sounded together. The beat frequency is
2Hz
5Hz
8Hz
10Hz
Giải thích
Beat frequency = f\(_1\) - f\(_2\)
f\(_1\) = 6Hz
f\(_2\) = 4Hz
Beat frequency = f\(_1\) - f\(_2\) = 6 - 4 = 2Hz