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Q.

Pick out electron's charge to mass ratio's value from the options.

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a

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b

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c

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d

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answer is A.

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Detailed Solution

A British physicist J. J. Thomson carried out experiments and observed the deflections made by electrons in an electric or magnetic field. He finally calculated electron's charge to mass ratio as e/me =Question ImageThe units of charge and mass are in coulomb and kg respectively.

 

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