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What were the main achievements of India in Science?

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The modern age is an era of science. The achievements of Science are possible due to the continuous efforts and research of scientists. Aryabhatta was the first scientist who told that the earth is spherical and it rotates on its axis, by which day and night formed. Brahmagupta was the first mathematician who gave the law of working of zero. Raman effect was given by Chandra Shekar Venkataraman. He passed the monochromatic light rays of mercury through some transparent substances and obtained spectrum on an ordinary spectrograph. He saw new lines in the spectrum and named them Raman lines. He declared Raman effect in a meeting of scientists on 16th March 1926. He was awarded Noble prize of Physics in 1930. Raman effect helped in understanding the molecular structure of a substance. Much research work was done on Raman effect after Laser rays.

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