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Topic: Help with electromagnetics and radiation!  (Read 3601 times)

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Offline babyruth789

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Help with electromagnetics and radiation!
« on: November 08, 2009, 10:58:43 PM »
A green leaf has a surface area of 3.00 cm squared. If solar radiation is 1000 W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.

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Offline sjb

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Re: Help with electromagnetics and radiation!
« Reply #1 on: November 09, 2009, 02:00:38 AM »
OK, what relevant equations have you come across? Can you, for instance, calculate how many watts of solar radiation hit the leaf?
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