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The Frequency Calculator during Doppler Effect in Relativistic Events will calculate the:

- Frequency of light during Doppler Effect in red shift phenomenon
- Frequency of light during Doppler Effect in blue shift phenomenon

The calculator also includes a units converter which allows you to convert "metres per second" to "speed of light in a vacuum" and vice versa, this is useful for computing the calculations in the same units and as a quick reference.

**Calculation Parameters:** All relativistic events are supposed to occur in a vacuum; any motion is one-dimensional; all systems are inertial. Speed of light in a vacuum is 299792458, you can alter this (to 300000000 for example) to allow computations in line with assumed parameters for specific calculations such as homework calculations or to work within an accepted tolerance

Handy Metres to Speed of Light in a Vaccum Converter: | |
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= | |

The frequency of light detected on Earth during red shift (f_{r}) is Hz [Hertz] or Hz [Hertz] |

The frequency of light detected on Earth during blue shift (f_{b}) is Hz [Hertz] or Hz [Hertz] |

Frequency of light during Doppler Effect in red shift phenomenon calculation |
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f = f' ∙ √1 - V/c/√1 + V/cf = ∙ √1 - //√1 + /f = ∙ √1 - /√1 + f = ∙ √/√f = ∙ /f = ∙ f = f = |

Frequency of light during Doppler Effect in blue shift phenomenon calculation |

f = f' ∙ √1 + V/c/√1 - V/cf = ∙ √1 + //√1 - /f = ∙ √1 + /√1 - f = ∙ √/√f = ∙ f = f = |

Frequency During Doppler Effect In Relativistic Events Calculator Input Values |

Frequency of light in the system S' connected to the object or event (original frequency of light) (f') Hz [Hertz] |

Velocity of system S' (the moving star) relative to the system S at rest (Earth) (V) m/s [metre per second] |

Speed of light in vacuum (c) m/s [metre per second] |

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f = f' ∙ *√***1 - ***V**/**c**/**√***1 + ***V**/**c*

f = f' ∙ *√***1 + ***V**/**c**/**√***1 - ***V**/**c*

The following Physics tutorials are provided within the Relativity section of our Free Physics Tutorials. Each Relativity tutorial includes detailed Relativity formula and example of how to calculate and resolve specific Relativity questions and problems. At the end of each Relativity tutorial you will find Relativity revision questions with a hidden answer that reveals when clicked. This allows you to learn about Relativity and test your knowledge of Physics by answering the test questions on Relativity.

- 18.1 - Relativity. Galilean Transformations. Einstein's Postulates and Newton's Laws
- 18.2 - Classical Principle of Relativity
- 18.3 - Space and Time in Einstein Theory of Relativity
- 18.4 - Relativistic Transformation of Velocity and the Relativistic Doppler Effect
- 18.5 - Lorentz Transformations
- 18.6 - Relativistic Dynamics. Mass, Impulse and Energy in Relativity

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