Question

ubder white light,what colour will an object appear to be if it :1.reflects all the colours of light, 2.absorbs all the colours of light, 3.reflects green light and absorb other colours, 4.reflects red light and absorbs other colours​

Answer 1

The colour of an object depends upon the light reflected and absorbed, so if you the object appears blue to you that means that the object reflects blue light and absorbs rest of the spectrum. That's why in black colour all light is absorbed and no light is emitted, thus absorbing all the radiation heat

Answer 2

1 . White

2. Black

3.Green

4.red