Question

how will you prove transverse nature of light by polarisation?? reply fast

Answer 1

Light waves throughout space-time because the agent doing the waving (atoms) sends the photon off it a particular direction. Imagine a buoy on the water, the waves from the water cause the buoy to oscillate up and down, the waves from the water move on a plane perpendicular to the buoys maximum bobbing motion. i.e. When you use a wrench you apply force to one end to produce a rotational motion, the maximum force is produce when it is directly perpendicular (90 degs) I say all this because the maximum amplitude for the wave front is directly proportional to the linear motion of the agent (bobbing atom) that does the waving. Linear motion can give rise to transverse motion in this way, ever shake a rope up and down? That's linear to transverse action. Now polarization excludes all wave fronts except for a single you guessed it, up and down motion. Because light (EM radiation) already has a two self-reinforcing wave structures; a magnetic one and an electric one at 90 degs to each other, all emitted waves from any direction (because we live in 3D space) can be split into one of the two wave fronts and thus you can block light from one direction and not the other and vice versa.

if you ever take differential calculus and utilize partial derivatives this will see this intuitively.