1.1.1 properties of cathode rays
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10 Terms
How many properties of cathode rays were JJ Thomson able to observe ?
5
Name the 5 properties observed by JJ Thomson about the cathode rays
Cathode rays ,
travel in straight lines
are beams of particles having mass and possess kinetic energy
Are deflected towards the positively charged plate when an electric field is applied
Nature doesn't depend on the nature of the gas taken in or material of the cathode
e/m ratio of cathode ray particles obtained from different gases are exactly same
What is the atomic model put forward by JJ Thomson?
Plum pudding model
Who measured the charge of an electron ?
Robert Millikan
What is the charge of an electron
1.602×10–¹⁹C
What was the experiment used to measure the charge of an electron?
Oil drop experiment
What's the mass of an electron?
9.10×10–²⁸g
What is the mass of an electron when compared to a hidrogen atom ?
1/1837 of a hydrogen atom
What is the lightest atom ?
Hydrogen
What is the relative charge of an electron?
-1