What affects the intensity of different coloured lights?

[Breanna]

Okay, so I have completed a practical where I used a light box and then placed different coloured plastics in front of the light and measured the light intensity of each colour. From the results I found that yellow, orange and violet had the highest intensities, with red and green having the lowest intensity, with blue in the middle.

What made this happen? Does the wavelength of each colour change the intensity? or is it the frequency? or is it another factor?

If possible could someone please help! :)

 

[Bystander]

different coloured plastics in front of the light

There's just the one light source?

 

[Breanna]

yes, there was only one light source

 

[Bystander]

Have you plotted "intensity" versus frequency/wavelength?

 

[Breanna]

Have you plotted "intensity" versus frequency/wavelength?

Yeah that is the main graph that is being used for analysis

 

[Bystander]

What do you know about the source? Incandescent filament? CFL? Something else?