If solar radiation is 1200 w/m2 , how many photons strike the leaf every second? assume three significant figures and an average wavelength of 504 nm for solar radiation.

Power received by the beam of photons is given as

Power = number of photons per second * energy due to one photon

here we know that

= planck's constant

= speed of light

= wavelength of photons

so above photons per second strike with it

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation:

it is the second option.