A tuning fork A produces 4 beats/sec with another tuning fork B of frequency 320 Hz. On filing the fork A, 4 beats/sec are again heard. The frequency of fork A, after filing is
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Step 1: Given that tuning fork A produces 4 beats/sec with tuning fork B of frequency 320 Hz. Show more…
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Two tuning fork $A$ and $B$ give 4 beats per second when sounded together. The frequency of $A$ is $320 \mathrm{~Hz}$. When some wax is added to $B$ and it is sounded with $A, 4$ beats per second are again heard. The frequency of $B$ is (a) $312 \mathrm{~Hz}$ (b) $316 \mathrm{~Hz}$ (c) $324 \mathrm{~Hz}$ (d) $328 \mathrm{~Hz}$
On sounding tuning fork $A$ with another tuning fork $B$ of frequency $384 \mathrm{~Hz}, 6$ beats are produced per second. After loading the prongs of $A$ with some wax and then sounding it again with $B, 4$ beats are produced per second. What is the frequency of the tuning fork $A$ ? (a) $388 \mathrm{~Hz}$ (b) $378 \mathrm{~Hz}$ (c) $380 \mathrm{~Hz}$ (d) $390 \mathrm{~Hz}$
On sounding tuning fork $A$ with another tuning fork B of frequency $384 \mathrm{~Hz}, 6$ beats are produced per second. After loading the prongs of $A$ with wax and then sounding it again with $B, 4$ Beats are produced per second what is the frequency of the tuning fork $A$. (a) $388 \mathrm{~Hz}$ (b) $8 \mathrm{o} \mathrm{Hz}$ (c) $378 \mathrm{~Hz}$ (d) $390 \mathrm{~Hz}$
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