Name the scientist who first used a glass prism to obtain the spectrum

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Name the scientist who first used a glass prism to obtain the spectrum of sunlight

C. V. Raman
Lord Rayleigh
Isaac Newton
S. Chandrasekhar
This question was previously asked in
UPSC NDA-2 – 2020
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The correct answer is (C) Isaac Newton. Sir Isaac Newton was the first scientist to use a glass prism to split sunlight into its constituent colors, demonstrating that white light is a spectrum of colors.
Newton’s experiments with prisms laid the foundation for the understanding of the dispersion of light and the nature of color.
C. V. Raman was an Indian physicist known for his work on the scattering of light (Raman effect). Lord Rayleigh was a British physicist who made significant contributions to physics, including work on scattering (Rayleigh scattering). S. Chandrasekhar was an Indian-American astrophysicist known for his theoretical work on the evolution of stars.

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