What is the wavelength in nanometers of light with a frequency of 3.75 x 10^14s^-1?

what is the wavelength in meters and nanometers of light with an energy of 2.25 x 10^-18 joule?

with both of these.

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?