What would happen to light at absolute zero temperature.?

Question

We know that light is made up of particles called photons.At absolute zero temperature(-273 c or 0 k) kinetic energy of body becomes zero so will light also stop at that temperature being made up of photons.

Answer 1

Light slows as the temperature approaches zero.I don't believe that zero temperature has ever been obtained.If the temperature got to zero, every thing would come to a screeching halt,even light.

Answer 2

Nothing happens to light when ultra low temperatures on the kelvin scales exist.

But more to the question of 'what would happen to anything at absolute zero', we will never know. Researchers are conducting experiments that are bringing them closer and closer to actual 0K but do to the third law of thermodynamics, they will never reach true absolute zero. At absolute zero, in theory, solids should not be able to exist. They would have to exist in 'phase' which I can't begin to understand what that would be.

Also, there will always be some kind of temperature, or 'heat leak', introduced into any absolute zero experiment that would not allow a true 0K reading.

Answer 3

Absolute Zero, lowest temperature theoretically possible, characterized by complete absence of heat. Absolute zero is -273.15° C (-459.67° F), or zero on the thermodynamic or Kelvin scale (0 K).

The concept of an absolute zero of temperature first arose in connection with experiments with gases; when a fixed volume of gas is cooled, its pressure decreases with its temperature. Although this experiment cannot be conducted below the liquefaction point of the gas, a plot of the experimental values of pressure versus temperature can be extrapolated to zero pressure. The temperature at which the pressure would be zero is the absolute zero of temperature. This experimentally derived concept was subsequently shown to be consistent with theoretical definitions of absolute zero. The atoms and molecules in an object at absolute zero would have their minimum possible amount of motion. They would not be completely at rest, but they could not lose any more energy of movement, and so could not transfer any heat to another object.

The concept of absolute zero is also important in theoretical considerations. According to the third law of thermodynamics, the entropy, or state of disorder, of a pure crystal would be zero at absolute zero; this is of considerable importance in analysing chemical reactions and in quantum physics. Materials show strange properties when they are cooled to very low temperatures. Some lose their electrical resistance completely. This effect was first observed in mercury a few degrees above absolute zero, but it is being produced at ever higher temperatures in new materials.

Answer 4

Light is technically a wave that can display "particle-like" properties. Some particles can display "wave-like" properties.

Absolute zero temperature would not affect the propagation of light in any way. Think of outer space, it has an average temperature of 3.2 Kelvin (not far away from abs. 0) but light still propagates to us from the sun.

Some labs have got down to 250 milliKelvin and light certainly wasn't slowing down through their experiment.

Answer 5

Light travels as photons which are tiny mass-less packets of energy traveling at the speed of light. They are not particles like rocks that can lose thermal energy, they are pure energy. Photons travel through the coldest reaches of space (away from stars) without slowing down, they can't travel at less than the speed of light. Even a rock hurdling through space does not slow down because it loses most if not all of its thermal energy.

Answer 6

Light is not affected by temperature. It has no mass and doesn't interact with matter in a conventional way like thermal interactions.

Answer 7

light will become black
acc to me in space there is a condition of absolute o temp & that is in the black hole.