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- Newsgroups: sci.physics
- Path: sparky!uunet!gatech!hubcap!jtbell
- From: jtbell@hubcap.clemson.edu (Jon Bell)
- Subject: Re: light intensity
- Message-ID: <1993Jan21.022909.1262@hubcap.clemson.edu>
- Organization: Presbyterian College, Clinton SC
- References: <20JAN93.16010321@uwpg02.uwinnipeg.ca>
- Date: Thu, 21 Jan 1993 02:29:09 GMT
- Lines: 18
-
- In article <20JAN93.16010321@uwpg02.uwinnipeg.ca> wsimpson@uwpg02.uwinnipeg.ca writes:
-
- >If we consider light as a particle, do we measure intensity
- >by
- >#photons per unit area (on which light falls) x #photons per unit time
-
- The correct units would be "# of photons per unit area per unit time", or
- in SI units,
-
- # of photons
- ------------
- m**2 sec
-
- This quantity might best be called "photon flux density". There's no
- special name for the combination of units shown above.
-
- Jon Bell / Physics & C.S. / Presbyterian College / Clinton SC USA
-
-