Who was the first one to use a glass prism to obtain the spectrum of sunlight?
Isaac Newton
Newton's Prism Experiment Unveiled Sunlight Spectrum
The phenomenon of splitting white sunlight into its constituent colors, forming a spectrum, was first systematically demonstrated using a glass prism by Isaac Newton.
Pioneering Light Dispersion
- In the 17th century, Isaac Newton conducted experiments showing that white light entering a glass prism was refracted and dispersed into different colors (red, orange, yellow, green, blue, indigo, violet).
- He further demonstrated that passing this separated colored light through another prism did not change the colors, but recombining the colors with a second prism could recreate white light.
- This established that white light is composed of all the colors of the spectrum.
While others might have observed light passing through glass, Newton was the first to rigorously investigate and explain the dispersion of sunlight into a spectrum using a glass prism.
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Important Questions from Optics
Which one of the following colours may be obtained by combining green and red colours?
Which of the following are the primary colours of light?
A non-SI unit called 'nit' is the unit of which of the following photometric quantities used to measure a multitude of light intensity?
Which among the following is used as a reflector in search lights?
The incident ray, the ray perpendicular to the point of incidence, and the reflected ray all lie________.
