Adding colors

Do it

Put together the experiment in the figure and make sure that when light of different colors is combined, we perceive new colors.

Adding RGB colors

Teiste värvuste saamiseks tuleb roheline, sinine ja punane valgus liita. Liitmiseks on kõige sobilikum kasutada kolme eraldi valgusallikat. Siiski saame tekitada kolm kattuvat kiirtekimpu ka vaid ühe valgusallikaga, kui jagame selle kiirtekimbu kolmeks, filtreerime iga kiirtekimpu eraldi ning tekitame siis olukorra, kus need kolm kiirt kattuvad. 

How to conduct the experiment?

Placing the light filters over the slit system as shown requires dexterity. Since plastic tends to collect static electricity, this shouldn't be too much of a challenge though - the filters seem to stick to the paper.

Merging different colored beam bundles

When light beams of different colors are combined, light is produced, which corresponds to the light having the sum of the spectra of the light beams being combined. By adding all the colors, we get white light again.

Also experiment with CMYK filters. What do you notice?