Why light may considered to consist of a propagation wave consisting electic and magnetic field? sin (2pi/landa) (vt-x)?????

Question

anonymous · Answer

its 'coz of the way it behaves. Quite the way like, like we expect a mad man to behave erratically! anyway. light can be particles as well!

anonymous · Answer

yea E=hf!

anonymous · Answer

right!

anonymous · Answer

a good physics theory is a very nice guess at how something is "expected" to behave.. under certain conditions.

anonymous · Answer

yet,sin (2pi/landa) (vt-x)? I don't get it. -.-"

anonymous · Answer

the "x" in that equation conspires with t  to change the value of vt-x & hence sin () depends on position AND time.. much the way a wave is supposed to behave.

anonymous · Answer

thx!