MHT CET 202622 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 22 April
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Waves and Sound
MHT CET 2026 · 22 April · Evening Shift · Physics · Waves and Sound
In the context of the Doppler effect in sound, which statement is...
In the context of the Doppler effect in sound, which statement is true regarding the wave speed in the medium?
Options
- AThe speed of sound increases if the source moves towards the observer.
- BThe speed of sound decreases if the source moves away from the observer
- CThe speed of sound remains the same regardless of the relative motion between the source and observer.
- DThe speed of sound changes based on the observer's velocity.
Correct answer
C. The speed of sound remains the same regardless of the relative motion between the source and observer.
Step-by-step solution
The speed of sound in a medium is a property of the medium itself, depending on factors such as elasticity, density, and temperature.
It does not depend on the motion of the sound source or the observer.
The Doppler effect involves a change in the observed frequency and wavelength due to relative motion, but the wave speed relative to the medium remains constant.
Answer: The speed of sound remains the same regardless of the relative motion between the source and observer.
It does not depend on the motion of the sound source or the observer.
The Doppler effect involves a change in the observed frequency and wavelength due to relative motion, but the wave speed relative to the medium remains constant.
Answer: The speed of sound remains the same regardless of the relative motion between the source and observer.