Question

what is light energy? explain in detail in at east 50 words

Answer 1

Light energy is a kind of kinetic energy with the ability to make types of light visible to human eyes.  Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun.

Light contains photons which are minute packets of energy. When an object’s atoms get heated up, it results in the production of photons and this is how photons are produced. The electrons find excitement from the heat and results in earning extra energy. The energy is released in the form of a photon and more photons come out as the substance gets hotter.

Light travels in the form of a wave when it travels. However, no matter is essential to carry the energy along to travel. This is the reason why light can travel through space where there is no air. This is not the case with sound waves since they have to travel through solids, liquids or gas. Light energy is very quick and travels faster than anything. The light speed is equal to 186,282 miles per second.

Answer 2

Light

Actually, light nothing but an electromagnetic radiation, provided that it is within a certain electromagnetic spectrum. Generally when we speak about light then we can define it as the spectrum that is visible to our eyes and the one responsible for the visibility. Light helps us to see objects and any thing present around us. The sight we experience today would surely not be possible in the absence of light. Light travels in the form of waves. The speed of light in vacuum is approximately 29,97,92,458 m/s  but for our convenience we usually take it as 3 * 10 ^ 8 m/s . The visible light are the ones that have the wavelengths ranging from 400 to 700 nanometres. Basically, the visible light are ones apart from infrared and ultraviolet. Two phenomenons are generally common in the case of light, namely, reflection and refraction.