Adjustable frequency produces 4 beats per second with a tuning fork when its
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Sol. Group – I
Group – II
Given V = 350 v = 350 λ
base 1 = 32 cm λ base 2 = 32.2 cm
= 32 × 10^–2 m
= 32.2 × 10^–2 m So η
base 1 = frequency = 1093 Hz η
base 2 = 350 / 32.2 × 10^–2
= 1086 Hz So beat frequency
= 1093 – 1086
= 7 Hz.
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