1. Light is a type of electromagnetic radiation. Which the humans eye can easily see. Light, particles and wave can be occur simultaneously in nature. Whatever natural light we see that makes us see everything we get from our sun. There are many types of light for example: Infrared Light, x-rays light, Gamma rays, Ultraviolet light. 2. The speed of light in highest in space or vacuum. Because these light particles are completely massless. Unlike all other particles, these particles do not interact with the Higgs Field at all. So they travel in space at the speed of 2.99792 km/PS. Because massless particles can travel in space at the same speed. 3. Infrared Light was discovered by William Herschel. In infrared light infra means ‘below’ in Latin. Because it is below red spectrum of light. This light is invisible, we cannot see it with our naked eyes. We just feel the heat of it. The difference in light is due to the wavelength. With difference light we can...
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