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Hi guys, I need some help converting between units. I hope you can help. :)

The candela is defined as "the luminous intensity of a light source producing single-frequency light at a frequency of 540 terahertz (THz) with a power of 1/683 watt per steradian".

Now, one watt is equal to: 0.737562ft-lb/s, 23.73035666ft-pdl/s, and 8.850744in-lb/s.

So, here's the question: how would you state the definition of the candela with reference to the foot-pound/second, the foot-poundal/second, or the inch-pound/second?

My "calculation", which may be wrong hence why I'm asking (cos I really don't know!!), is:

"the luminous intensity of a light source producing single-frequency light at a frequency of 540 terahertz (THz) with a power of:

Now, if my answers are wrong, I would really like not only the right answers, but also a reason for the right asnwers so I know for the future :D

Cheers guys, I really hope someone can help. :) :)

The candela is defined as "the luminous intensity of a light source producing single-frequency light at a frequency of 540 terahertz (THz) with a power of 1/683 watt per steradian".

Now, one watt is equal to: 0.737562ft-lb/s, 23.73035666ft-pdl/s, and 8.850744in-lb/s.

So, here's the question: how would you state the definition of the candela with reference to the foot-pound/second, the foot-poundal/second, or the inch-pound/second?

My "calculation", which may be wrong hence why I'm asking (cos I really don't know!!), is:

"the luminous intensity of a light source producing single-frequency light at a frequency of 540 terahertz (THz) with a power of:

1/503.754846ft-lb/s per steradian"

1/16207.83360333ft-pdl/s per steradian"

1/6045.058152in-lb/s per steradian"

1/503.754846ft-lb/s per steradian"

1/16207.83360333ft-pdl/s per steradian"

1/6045.058152in-lb/s per steradian"

Now, if my answers are wrong, I would really like not only the right answers, but also a reason for the right asnwers so I know for the future :D

Cheers guys, I really hope someone can help. :) :)

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