Find the number of photons per second per square meter

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Reference no: EM13301507

Light is shining perpendicularly on the surface of the earth with an intensity of 680 W/m2. Assuming that all the photons in the light have the same wavelength (in vacuum) of 578 nm, determine the number of photons per second per square meter that reach the earth.

Reference no: EM13301507

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