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In Doppler's effect in sound,
- a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observer
- b)it is not possible to detect any change in frequency when the speed of source or observer is more than that of sound
- c)wind alone cannot produce any Doppler's effect
- d)the wavelength always changes when there is some relative motion between the source and the observer
Correct answer is option 'A,B,C'. Can you explain this answer?
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In Doppler's effect in sound,a)the apparent change in frequency recei...
Doppler's Effect in Sound:
Doppler's effect in sound is the change in frequency of sound waves due to the relative motion between the source and observer. The apparent change in frequency received by a stationary observer is given by:
f' = f(v ± v₀) / (v ± vs)
Where f is the frequency of the source, v is the speed of sound, v₀ is the speed of the observer, and vs is the speed of the source.
Explanation of options:
A) The apparent change in frequency received by a stationary observer is more in the case of a source moving towards than away from the observer.
This is true because when the source is moving towards the observer, the relative speed between them is higher, resulting in a higher change in frequency. When the source is moving away, the relative speed is lower, resulting in a lower change in frequency.
B) It is not possible to detect any change in frequency when the speed of the source or observer is more than that of sound.
This is also true because when the speed of the source or observer is equal to or more than that of sound, the sound waves cannot reach them, resulting in no change in frequency.
C) Wind alone cannot produce any Doppler's effect.
This is true because wind is a medium through which sound waves travel, and it does not affect the relative motion between the source and observer.
D) The wavelength always changes when there is some relative motion between the source and the observer.
This is false because the wavelength remains constant in the case of Doppler's effect in sound. Only the frequency changes, resulting in a change in pitch.
Conclusion:
In summary, the apparent change in frequency received by a stationary observer is more in the case of a source moving towards than away from the observer, it is not possible to detect any change in frequency when the speed of the source or observer is more than that of sound, and wind alone cannot produce any Doppler's effect.
Doppler's effect in sound is the change in frequency of sound waves due to the relative motion between the source and observer. The apparent change in frequency received by a stationary observer is given by:
f' = f(v ± v₀) / (v ± vs)
Where f is the frequency of the source, v is the speed of sound, v₀ is the speed of the observer, and vs is the speed of the source.
Explanation of options:
A) The apparent change in frequency received by a stationary observer is more in the case of a source moving towards than away from the observer.
This is true because when the source is moving towards the observer, the relative speed between them is higher, resulting in a higher change in frequency. When the source is moving away, the relative speed is lower, resulting in a lower change in frequency.
B) It is not possible to detect any change in frequency when the speed of the source or observer is more than that of sound.
This is also true because when the speed of the source or observer is equal to or more than that of sound, the sound waves cannot reach them, resulting in no change in frequency.
C) Wind alone cannot produce any Doppler's effect.
This is true because wind is a medium through which sound waves travel, and it does not affect the relative motion between the source and observer.
D) The wavelength always changes when there is some relative motion between the source and the observer.
This is false because the wavelength remains constant in the case of Doppler's effect in sound. Only the frequency changes, resulting in a change in pitch.
Conclusion:
In summary, the apparent change in frequency received by a stationary observer is more in the case of a source moving towards than away from the observer, it is not possible to detect any change in frequency when the speed of the source or observer is more than that of sound, and wind alone cannot produce any Doppler's effect.
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In Doppler's effect in sound,a)the apparent change in frequency recei...
Option (a): 
Option (b): Frequency heard will be negative. (Not Possible)
Option (c): Wind alone does not produce Doppler's Effect.
Option (d): Wavelength changes only when source is in motion with respect to observer.
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In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer?
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In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer?.
In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer?.
Solutions for In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
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ample number of questions to practice In Doppler's effect in sound,a)the apparent change in frequency received by stationary observer is more in the case of a source moving towards than away from the observerb)it is not possible to detect any change in frequency when the speed of source or observer is more than that of soundc)wind alone cannot produce any Doppler's effectd)the wavelength always changes when there is some relative motion between the source and the observerCorrect answer is option 'A,B,C'. Can you explain this answer? tests, examples and also practice JEE tests.
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