KEAM 2021 Physics and Chemistry Solved Paper
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In Young's double-slit experiment, two different light beams of wavelengths λ 1 and λ 2 produce interference pattern with band widths β 1 and β 2 respectively. If the ratio between β 1 and β 2 is 3 : 2 , then the ratio between λ 1 and λ 2 is
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