Observed Frequency when Source Moves towards Observer Solution

STEP 0: Pre-Calculation Summary
Formula Used
Frequency Observed = Wave Frequency*(Velocity of Sound)/(Velocity of Sound-Velocity of Source)
Fo = fW*(c)/(c-Vsource)
This formula uses 4 Variables
Variables Used
Frequency Observed - (Measured in Hertz) - Frequency Observed is the number of oscillations or cycles of a wave that an observer detects per second due to the Doppler Effect.
Wave Frequency - (Measured in Hertz) - Wave Frequency is the number of oscillations or cycles of a wave per second, affected by the relative motion of the source and observer.
Velocity of Sound - (Measured in Meter per Second) - Velocity of Sound is the speed at which sound waves propagate through a medium, affected by the Doppler Effect, resulting in wavelength changes.
Velocity of Source - (Measured in Meter per Second) - Velocity of Source is the speed at which the source of a wave is moving relative to an observer, affecting the wavelength of the emitted wave.
STEP 1: Convert Input(s) to Base Unit
Wave Frequency: 200 Hertz --> 200 Hertz No Conversion Required
Velocity of Sound: 343 Meter per Second --> 343 Meter per Second No Conversion Required
Velocity of Source: 80 Meter per Second --> 80 Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Fo = fW*(c)/(c-Vsource) --> 200*(343)/(343-80)
Evaluating ... ...
Fo = 260.836501901141
STEP 3: Convert Result to Output's Unit
260.836501901141 Hertz --> No Conversion Required
FINAL ANSWER
260.836501901141 260.8365 Hertz <-- Frequency Observed
(Calculation completed in 00.004 seconds)

Credits

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Created by Anirudh Singh
National Institute of Technology (NIT), Jamshedpur
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Doppler Effect Calculators

Observed Frequency when Observer and Source Move Away from Each Other
​ Go Frequency Observed = ((Wave Frequency*(Velocity of Sound-Velocity Observed))/(Velocity of Sound+Velocity of Source))
Observed Frequency when Observer and Source Move towards Each Other
​ Go Frequency Observed = ((Wave Frequency*(Velocity of Sound+Velocity Observed))/(Velocity of Sound-Velocity of Source))
Observed Frequency when Observer Moves Away from Source
​ Go Frequency Observed = Wave Frequency*((Velocity of Sound-Velocity Observed)/Velocity of Sound)
Observed Frequency when Observer Moves Away from Source using Wavelength
​ Go Frequency Observed = (Velocity of Sound-Velocity Observed)/Wavelength

Observed Frequency when Source Moves towards Observer Formula

Frequency Observed = Wave Frequency*(Velocity of Sound)/(Velocity of Sound-Velocity of Source)
Fo = fW*(c)/(c-Vsource)

What is Doppler Effect?

The Doppler effect (or the Doppler shift) is the change in frequency of a wave in relation to an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.

How to Calculate Observed Frequency when Source Moves towards Observer?

Observed Frequency when Source Moves towards Observer calculator uses Frequency Observed = Wave Frequency*(Velocity of Sound)/(Velocity of Sound-Velocity of Source) to calculate the Frequency Observed, Observed Frequency when Source Moves towards Observer formula is defined as a measure of the frequency of a wave that is perceived by an observer when the source of the wave is moving towards the observer, resulting in an increase in the frequency of the wave. Frequency Observed is denoted by Fo symbol.

How to calculate Observed Frequency when Source Moves towards Observer using this online calculator? To use this online calculator for Observed Frequency when Source Moves towards Observer, enter Wave Frequency (fW), Velocity of Sound (c) & Velocity of Source (Vsource) and hit the calculate button. Here is how the Observed Frequency when Source Moves towards Observer calculation can be explained with given input values -> 1379.825 = 200*(343)/(343-80).

FAQ

What is Observed Frequency when Source Moves towards Observer?
Observed Frequency when Source Moves towards Observer formula is defined as a measure of the frequency of a wave that is perceived by an observer when the source of the wave is moving towards the observer, resulting in an increase in the frequency of the wave and is represented as Fo = fW*(c)/(c-Vsource) or Frequency Observed = Wave Frequency*(Velocity of Sound)/(Velocity of Sound-Velocity of Source). Wave Frequency is the number of oscillations or cycles of a wave per second, affected by the relative motion of the source and observer, Velocity of Sound is the speed at which sound waves propagate through a medium, affected by the Doppler Effect, resulting in wavelength changes & Velocity of Source is the speed at which the source of a wave is moving relative to an observer, affecting the wavelength of the emitted wave.
How to calculate Observed Frequency when Source Moves towards Observer?
Observed Frequency when Source Moves towards Observer formula is defined as a measure of the frequency of a wave that is perceived by an observer when the source of the wave is moving towards the observer, resulting in an increase in the frequency of the wave is calculated using Frequency Observed = Wave Frequency*(Velocity of Sound)/(Velocity of Sound-Velocity of Source). To calculate Observed Frequency when Source Moves towards Observer, you need Wave Frequency (fW), Velocity of Sound (c) & Velocity of Source (Vsource). With our tool, you need to enter the respective value for Wave Frequency, Velocity of Sound & Velocity of Source and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Frequency Observed?
In this formula, Frequency Observed uses Wave Frequency, Velocity of Sound & Velocity of Source. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Frequency Observed = ((Wave Frequency*(Velocity of Sound-Velocity Observed))/(Velocity of Sound+Velocity of Source))
  • Frequency Observed = ((Wave Frequency*(Velocity of Sound+Velocity Observed))/(Velocity of Sound-Velocity of Source))
  • Frequency Observed = Wave Frequency*((Velocity of Sound-Velocity Observed)/Velocity of Sound)
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