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Millikan's Oil Drop Experiment

The e/m ratio...

Question

The e/m ratio for electron was determined by :

A

J.J Thomson

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B

Planck

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C

Einstein

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D

Schrodinger

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Solution

The correct option is A J.J Thomson
In 1897, J.J. Thomson determined the e/m value (charge/mass) of the electron by studying the deflection of cathode rays in electric & magnetic fields.

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Q. The ratio of charge to mass of an electron in coulombs per gram was determined by J.J. Thomson. He determined this ratio by measuring the deflection of cathode rays in electric and magnetic fields. What value did he find for this ratio?

Q. The ratio of charge to mass of an electron in coluombs per gram was determined by J.J. Thomson. He determined this ratio by measuring the deflection of cathode rays in electric and magnetic field. What value did he find for this ratio?

How did jj thomson arrive at the conclusion that matter was made of electrons

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