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Byju's Answer
Standard XII
Chemistry
Thomson's Discovery of Electrons
Which of the ...
Question

Which of the following statement is not true regarding cathode rays:

A
They are composed of a stream of electrons
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B
The mass of an electron is 1837 times the mass of a neutron
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C
They have a speed comparable to the speed of light
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D
They can be deflected by magnetic fields
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Solution

The correct option is B The mass of an electron is 1837 times the mass of a neutron
Mass of a neutron = 1837 times the mass of an electron.

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Thomson's Discovery of Electrons
Standard XII Chemistry
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