Question

The frequency of tuning fork is 384 Hz. The dis-
tance travelled by the sound when the fork com-
pletes 36 vibrations is (Velocity of sound in air is
352 ms)
1) 22 m 2) 33 m 3) 52 m 4) 11 m​

Answer 1

Answer:

33m

Explanation:

x=v×$\frac{no. of complete vibration}{frequency of fork}$

=325×$\frac{36}{384}$

=33m

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Answer 2

The sound travels 33.0 m while the tuning fork vibrates thru 36 vibrations.

Explanation:

Since 384 vibrations and 1 second are equivalent time periods, the value of

1

second

384

vibrations

is unity. So we can use that as a conversion factor.

36

vibrations

⋅

1

second

384

vibrations

=

0.09375

s

In that amount of time, sound travels

352

m

s

⋅

0.09375

s

=

33.0

m

I hope this helps,

Steve