discharge tube experiment for class 9

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1. Discovery Of Electron

   

2. From the discharge tube experiment, it was concluded that:a) Mass of proton is in fractionb

   

3. Which gas was taken during cathode ray experiment in the discharge tube?

   

4. in discharge tube experiment for anode rays why we use perforated metal?

   

5. Discharge Tube Experiment/Discovery of electron /Urdu-H...

   

6. Give me clarifying note on the discharge tube experiment of Goldstein who discovered proton?