What are the light intensities of each wavelength of sunlight?
jamie e asked:
I, like many others at the moment, have been set a peice of work to plan an investigation into how light intensity of a bulb emmitting similar light to sunlight (specialist bulb for growing plants) changes at its different wavelengths. I would very much appreciate it if someone could find for me a table or graph with a number of wavelengths in nm, and their corresponding intensities in kW/m2/s or similar, for sunlight. Also, if anyone has any more general tips for how to conduct the experiment, I would be very pleased to hear them. My plan so far is simply to use filters to get light of a specific wavelengths and then use a multimeter to measure the resistance of an LDR near to the light, as an indication of light intensity of that wavelength. Most important thing though, is to get a table/graph of some preknown values. Thanks very much.
I, like many others at the moment, have been set a peice of work to plan an investigation into how light intensity of a bulb emmitting similar light to sunlight (specialist bulb for growing plants) changes at its different wavelengths. I would very much appreciate it if someone could find for me a table or graph with a number of wavelengths in nm, and their corresponding intensities in kW/m2/s or similar, for sunlight. Also, if anyone has any more general tips for how to conduct the experiment, I would be very pleased to hear them. My plan so far is simply to use filters to get light of a specific wavelengths and then use a multimeter to measure the resistance of an LDR near to the light, as an indication of light intensity of that wavelength. Most important thing though, is to get a table/graph of some preknown values. Thanks very much.