Question

a source of sound produces a note of 512 hz​

Answer 1

Answer:

anything

Explanation:

anything can produce sound of 512 hz until the human ear can hear it , human range of hearing is 20 hz to 2khz

Answer 2

Answer:

Correct answer is

no beats s

−1

Let n

d

and n

′′

be the frequencies heard by the observer O coming directly from the tuning fork and after reflecting from the wall respectively.

Velocity of sound in air =v

sound

m/s

Velocity of the source =v

source

m/s

Doppler effect when a source moves towards the stationary observer:

n

d

=512[

v

sound

−v

source

v

sound

]

Doppler effect when a source moves towards the wall:

n

′

=512[

v

sound

−v

source

v

sound

]

Now apparent frequency after the reflection from the wall n

′′

=n

′

=512[

v

sound

−v

source

v

sound

]

Beat frequency heard by the observer b=n

d

−n

′′

=0

solution

Explanation:

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