In case of doppler effect, the apparent frequency will be _ the actual frequency when the source moves towards the stationary observer
Correct answer: B. more that
- A. less than
- B. more that
- C. equal to
- D. none of these
Explanation
The Doppler effect states that when a source of waves (such as sound or light) moves towards a stationary observer, the apparent frequency of the waves increases. This is because the source is moving towards the observer, so the waves are "bunched up" and reach the observer more frequently, resulting in a higher apparent frequency.Conversely, when the source moves away from the observer, the apparent frequency decreases.So, when the source moves towards the stationary observer, the apparent frequency is more than the actual frequency.
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Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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