Cathode Ray Experiment by Ravindra senarathna #cathoderay#atom #chemisty#advancedlevelsinhala
#chemistry Sinhala medium #Cathode ray tests| කැතෝඩ කිරණ සඳහා පරික්ෂා# #Discovery of the Electron: Cathode Ray Tube Experiment# #cathoderay#unit01#chemisty https://whatsapp.com/channel/0029VbBB... Whatsapp චැනලයට සම්බන්ධ වන්න
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Cathode ray tests| කැතෝඩ කිරණ සඳහා පරික්ෂා
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