Why does frequency of a sound wave not changes with a change in medium ?
According to me ,
v = f. lambda
f = v/lambda
When medium changes , v changes :- so f should also change. But why it doesn't changes ?
# Need well explained answer
Prakhar2908:
We know that is remaining same
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21
_______Heyy Buddy ❤_________
_____Here's your Answer ___________
☆ Frequency can be define as the number of crests that passes a fixed point in the medium in a unit time.
☆ Frequency is dependent on Source not on Medium.
For Example:-
If their is a source that is faster than you , then the number of crest will be faster than yours.
But the speed depends on Property of the Medium. ( Ex;- Temperature or density).
We know that,
Wavelength = Speed / Frequency.
Means Wavelength depends upon Speed as well as Frequency.
So, If the Frequency of the medium is same throughout and only speed changes than ultimately the wavelength also changes.
That's the reason.
✔✔✔✔
_____Here's your Answer ___________
☆ Frequency can be define as the number of crests that passes a fixed point in the medium in a unit time.
☆ Frequency is dependent on Source not on Medium.
For Example:-
If their is a source that is faster than you , then the number of crest will be faster than yours.
But the speed depends on Property of the Medium. ( Ex;- Temperature or density).
We know that,
Wavelength = Speed / Frequency.
Means Wavelength depends upon Speed as well as Frequency.
So, If the Frequency of the medium is same throughout and only speed changes than ultimately the wavelength also changes.
That's the reason.
✔✔✔✔
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Answered by
24
_____________
Frequency :-
》Depends upon source (as it is produced from same source so if it change medium frequency won't change)
》 It does not depend upon medium
So......
With change in medium frequency does not change .
For different medium and same source :-
f = constant (as I mentioned above )
v=f lemda
as f is constant
So.....
v = constant Lemda
So.....
Frequency doesn't change with change in medium because it depends upon source , Assound is produced by same source so even if it change medium frequency doesnot change .
》》Our Sir said that frequency may change but very little
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