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Showing posts with label wave example. Show all posts
Showing posts with label wave example. Show all posts
Wednesday, 5 April 2017
What is light for all
What is Photon. Photon is define as, very very tiny (smallest) particle/packet of energy. The rest mass of photon is zero.
What is wave. Wave is define as, A wave can be described as a disturbance that travels through a medium from one location to another location.
Thomas Young's double-slit experiment shows that it also behaves as a wave.
Albert Einstein proved that in 1905, light could behave as a particle by showing that a beam of light could eject electrons from metal when a suitable radiation (invisible ray) fall on metal, This suggested that light consisted of photons that could eject electrons of similar frequency. Einstein's discovery altered the prevalent theory at the time, which held that light was only a wave.
And light has the wave nature also, it has proved earlier by Young in 1801. In his experiment, Young shone light between two parallel slits, causing the light waves to interfere with each other and form a patter of dark and light bands. If light was primarily a particle, it would have formed two parallel lines.
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