Refraction of sunlight by raindrops, the refraction depending upon wavelength to produce the colors
Light is usually unpolarized, it becomes polarized when it passes through a polarizing filter.
Light can be polarized because it travels as a transverse wave (of oscillating electric and magnetic fields) orthogonally to the direction of the medium in all directions, and polarizing filters polarize light in one plane.
Polarized filters in the vertical plane only allow light in the vertical plane to pass through.
Ex. polarized sunglasses have a polarizing filter in the vertical plane in order to minimize glare which is polarized light in the horizontal plane.
and yes polarizing filters can be rotated to polarize light in other planes as well.
yes light changes its direction when it passes form air to glass due to refraction of light coz air has less density n glass is a solid so it has more density due to that when light goes form air to glass then its speed decreases n its always bends towords the normal. but if light will go perpendicularly form air to glass then it will not change its direction.
This is because of the speed of light getting reduced as it enters into the denser medium.
Think of the FRONT of the wave as it enters a more-dense medium at an angle,
and its speed decreases. Vizualize it in very slow motion:
-- The wave-front arrives at angle, so part of it is across the boundary and into
the new medium, while part of it is still out in the old medium.
-- The part of the wave-front in the new medium is traveling slower, while the
part that hasn't quite reached the boundary yet is still out in the old medium
and traveling faster.
-- If your vizualization is running accurately, this action is causing the whole
wave-front to turn, becoming more parallel with the boundary, and its direction
of motion turning toward the normal.
In polarized light, the plane of the electrical (and magnetic) oscillations is the same for all photons (particles of light). For example, if the light is traveling away from you, all photons might have electrical oscillations that go up and down.
Optical fibers transmit signals over long distances by a process called total internal reflection. In this process, optical fibers bend light by bouncing pulses of light along their inner walls, which enables the pulses of light to travel quickly over long distances.
For more information, refer to the related link below.
they r erect,virtual,deminished and independent of distance.
Light travels faster in liquid material with a higher index or reflection.
Circularly polarized light is obtained by adding two plane polarized lights of same intensity that are orthogonal but with a phase difference of 90 degrees.
it is the study that deals with the optical waves.
while the optical wave is nothing but the light wave itself or can be called EM-waves(electromagnetic waves).
at cases study include the uv, infrared and radio waves
Is this Jeopardy?
OK I'll bite = "What is...a mirage?"
laws of refraction are as follows:=1) the incident ray, refracte dray and the normal at the point of incidence all lie on the same plane.==2) the sine of the angle of incidence to the sine of angle of refraction is a constant.this is also called the snell's law.=
Red light does.
Light travels through fiber optics the same way it travels everywhere else, except when it scrapes against the inside of the cable it bounces off. Sort of like how a matchbox car goes down a plastic track. In fact, just like the toy car, the light will escape from the cable if it has to turn too quickly. The name for this maximum turn angle is called the "critical angle".
This "critical angle" is different depending on what kind of material is in your cable (glass, plastic, metal, etc) as well as what the cable is sitting in (Air, water, space, etc).
The development of the first brake light is not actually known. They appeared in 1905 but took a while to catch on. By 1928 11 US States adopted brake lights
The emergent ray is the ray of light which passes through a denser medium(glass) to a rarer medium(air).
The very basic principle adopted in optical fibre is the phenomenon of light known as total internal reflection. In case of ordinary reflection, there will be a chance of the light energy to escape through the reflecting surface. But in case of total internal reflection, even a bit of energy could not escape hence it is named as total internal reflection. Compared to the propagation of electromagnetic energy through space, passing through optical fibre would be without any loss and so the transmission efficiency becomes very high.
Monochromatic means that it has only frequency. Polarized is definition for light which has its electric and magnetic vectors oscillating in a certain way (linearly polarized, elliptically and so on) but it might have many frequencies included. In the same time monochromatic light can be polarized.
It is used by cable going up the anal and lighting up the inside.
Reflectivity isn't a property of light, it's a property of the surface that reflects the light. It is the proportion of the energy in an incoming light beam which when it hits the surface is reflected rather than absorbed.