KEAM 2021 Physics and Chemistry Solved Paper

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Question : 24 of 120
 
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In Young's double-slit experiment, two different light beams of wavelengths λ1 and λ2 produce interference pattern with band widths β1 and β2 respectively. If the ratio between β1 and β2 is 3:2, then the ratio between λ1 and λ2 is
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