Light of Class 8


An old-age debate that has persisted among scientists is related to the question, "Is light a wave or a stream of particles?" Very noteworthy and distinguished physicists have taken up each side of the argument, providing a wealth of evidence for each side. The fact is that light exhibits behaviors that are characteristic of both waves and particles.

Light is a form of electromagnetic wave that causes the sensation of vision.

  • The wave nature of light was first illustrated through experiments on diffraction and interference.

  • Like all electromagnetic waves, light can travel through a vacuum.

  • The transverse nature of light can be demonstrated through polarization.

  • Light is sometimes also known as visible light to contrast it from "ultraviolet light" and "infrared light".

  • Other forms of electromagnetic radiation that are not visible to humans are sometimes also known informally as "light"

NCERT Solutions for class 8 science will be highly helpful. for this chapter

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