If you mix all colors from light, you get white.
If you mix all colors from pigments (paint) you get black.
If you mix all colors from digital pixellation, you get brown.
Which color of light has the greatest energy per photon? (a) blue (b) green (c) violet (d) red
Please explain the reason also why only this color has greatest energy?
What is the relation between wavelength and frequency of radio-wave. If wavelength of a radio wave is 1m then what would be its frequency?
We've all been told that only a black hole can bend light. My friend proved that statement wrong right in front of my face. Can you guess what he did to bend light?