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Electrons and Photons- Short Question-Answers-2
Electrons and Photons
1. Discuss the physical principles Invovoled in Milikan's experiment for the determination of the charge of an electron.Ans: The physical principles involved in Millikan's experiment for the determination of the charge of an electron are as follows:
i) Oil drops get ionized due to friction.ii) A charged particle experienced force in an electric field.
2. Cathode rays cannot be regarded as electromagnetic waves. Why?
Ans: Cathode rays cannot be regarded as electromagnetic waves because of all the elements. Cathode rays are defected by electric and magnetic fields but electromagnetic waves do not. Also, cathode rays do not show the nature of electromagnetic waves. Hence, they cannot be regarded as electromagnetic waves.
