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Question 05

Which of the following statements about the electron is incorrect ?

(a) It is negatively charged particle

(b) The mass of electron is equal to the mass of neutron

(c) It is a basic constituent of all atoms

(d) It is a constituent of cathode rays


Solution

Option b is the correct answer.

The mass of electron is very small as compared to the mass of the neutron.

Mass of electron =9.1×1031kg

Mass of neutron =1.67×1027kg

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