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    How much of a light is being produced by any source of light to make one candlepower?

    Question #77828. Asked by rajamurtaza. (Mar 26 07 7:24 AM)


    zbeckabee

    		The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540×1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.



    http://en.wikipedia.org/wiki/Candlepower

    Mar 26 07, 7:26 AM

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