Dispersion Discovery by Isaac Newton
The phenomenon known as the dispersion of light is the effect where white light splits into its distinct constituent colours when passing through a transparent medium, such as a prism.
This happens because each colour (wavelength) of light is refracted at a slightly different angle. Violet light, having a shorter wavelength, bends the most, while red light, with its longer wavelength, bends the least.
Sir Isaac Newton conducted pivotal experiments in 1666 that demonstrated this principle. He showed that white light could be separated into a spectrum of colours using a prism, and later proved that these colours could be recombined to form white light again.
Newton's work established that the visible spectrum consists of seven colours: red, orange, yellow, green, blue, indigo, and violet.
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Important Questions from Physics
Two balls, A and B, are thrown simultaneously, a vertically upward with a speed of 20 m/s from the ground and B vertically downward from a height of 40 m with the same speed and along the same line of motion. At what points do the two balls collide by taking acceleration due to gravity as 9.8 m/s 2?
On the basis of which principle does soap clean surfaces?
Which one of the following devices is used to measure atmospheric pressure?
Which one of the following energy is stored in the links between the atoms?
Who among the following has explained the phenomenon of photoelectric effect?
