Can Rev/s and Hz Represent the Same Frequency Measurement?

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Homework Help Overview

The discussion revolves around the relationship between different units of frequency measurement, specifically rev/s (revolutions per second) and Hz (hertz). Participants explore whether these units can be equivalent in the context of frequency, particularly in relation to electrons and photons.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants examine the definition of frequency and its representation in different units, questioning whether rev/s can be equated to Hz. Some discuss the implications of angular frequency and its relationship to standard frequency measurements.

Discussion Status

The discussion is ongoing, with various interpretations being explored. Some participants provide insights into the equivalence of units, while others raise questions about the general applicability of these units in different contexts.

Contextual Notes

There is a mention of different contexts in which frequency is measured, such as in circular motion and oscillations, but no consensus has been reached regarding the equivalence of rev/s and Hz.

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for the frequency of revolution of electrons, the unit is expressed as rev/s
but for the frequency of a photon, the unit is hz


my question:
can rev/s also equal hz?
 
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Well frequency is really just s^-1

Saying the "frequency of revolution" however qualifies the "rev/s" because you have frequency... "/s"... and revolutions "rev".
 
asdf1 said:
for the frequency of revolution of electrons, the unit is expressed as rev/s
but for the frequency of a photon, the unit is hz
my question:
can rev/s also equal hz?

Yes it can. 1 rev/sec is equal to 2pi rad/sec. This is angular frequency. If you look in elementary texts on circular motion, there's a directly relationship between angular frequency and the "usual" frequency.

Zz.
 
so if i see frequency, i can just use hertz, right?
 
You will also see cycles/sec a lot of times for units of frequency.
 
Hz is any COUNT per second ... your computer uses Mega "pulses per second", because its clock oscillates with a lot of "oscillations per second" , and the microwave oven produces even more "waves per second".
 
thank you very much!
 

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