Keller

Biology

23 September, 23:24

1) which color has the longest wavelength?

A - red

B - blue

C - green

D - orange

2) gamma rays, X-rays, visible light, and radio waves are all types of ___.

A - nuclear energy

B - chromatic aberration

C - ultraviolet radiation

D - electromagnetic radiation

3) The fact that light can exert a pressure on mater suggests that it is made of particles called ___.

A - electrons

B - protons

C - photons

D - neutrons