Why X-ray and radio waves can penetrate walls but light can not?
44782
How can wifi penetrate through walls when visible light can't?
32936
Can anyone explain to me why light is not dispersed into a spectrum through a parallel glass slide, but only through a prism?
26568
Electromagnetic fields vs electromagnetic radiation
98458
Radiation emission and absorption
62367
Why can two (or more) electric field lines never cross?
23340
Why is sound reflected and not transmitted through a wall?
116627
Why doesn't a charged particle moving with constant velocity produce electromagnetic waves?
30474
Why is light called an 'electromagnetic wave' if it's neither electric nor magnetic?
14043
Why don't electromagnetic waves require a medium?
10296
Why doesn't the magnetic field polarize when polarizing light?
133542
Why can't an electric field line suddenly break?
82414
Conceptually speaking, why does synchrotron radiation arise?
127351
Why can we only "see" reflected light?
100860
What's the difference between Hard X-rays and Gamma-rays?
99275
Do x-rays and gamma rays also contain photons like visible light does?
39242
Why can't we see light travelling from point A to B?
52326
Why does a ray passing through optical centre remain undeviated?