The (e/m) ratio for positive rays in comparis | vedclass

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(A) Cathode rays consist of electrons,while positive rays (anode rays) consist of positively charged gaseous ions.The mass of an electron $(m_e \appro

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Very low

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(A) Cathode rays consist of electrons,while positive rays (anode rays) consist of positively charged gaseous ions.The mass of an electron $(m_e \approx 9.11 	imes 10^{-31} \ kg)$ is extremely small compared to the mass of even the lightest positive ion (a proton,$m_p \approx 1.67 	imes 10^{-27} \ kg$).Since the $(e/m)$ ratio is inversely proportional to the mass $(m)$,the $(e/m)$ ratio for cathode rays (electrons) is very high,whereas the $(e/m)$ ratio for positive rays is very low.

The $(e/m)$ ratio for positive rays in comparison to cathode rays is

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