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4 years ago

14

A 200 Hz tuning fork is sounded at the same time as a guitar string and a beat frequency of 4 Hz is heard. Which of the followin

g could be the natural frequency of the guitar string? (a) 192 Hz, (b) 196 Hz, (c) 200 Hz, (d) 208 Hz, (e) 800 Hz.

1 answer:

leva [86]4 years ago

7 0

Explanation:

It is given that,

Frequency of the tuning fork, f₁ = 200 Hz

Beat frequency, $f_b=4\ Hz$

The difference of frequencies is called the beat frequency of the tuning fork. It is given by :

$|f_1-f_2|=4$

$200-f_2=\pm 4$

$f_2=196\ Hz$

or

$f_2=200\ Hz$

So, the correct option is (b) "196 hertz". Hence, this is the required solution.

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$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

The Gravitational Force between given objects will be ~

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$\large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}$

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$\huge\boxed{\mathrm{F = \dfrac{ Gm_1m_2}{ r²}}}$

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