In William Herschel's experiment that led to the discovery of infrared light, which of the following was his independent variable?

ambient temperature

color of light

time of day

amount of sunlight

Question

In William Herschel's experiment that led to the discovery of infrared light, which of the following was his independent variable?

       ambient temperature

       color of light

       time of day

       amount of sunlight

anonymous · Answer

@JocelynC sorry this is the last one :) do u know this?

anonymous · Answer

I believe that it was the amount of sunlight.  I'll need to double check because I haven't looked him up before...it just seems like the correct answer.

anonymous · Answer

thanks :) if u find the answer after u look it up let me know :)