X–rays were discovered by (1) Becquerel (2)Roentgen (3) Marie Curie (4)Van Lue Answer : Roentgen...
Electron was discovered by (1) Ernest Rutherford (2) Max Planck (3) Joseph Thomson (4) Albert Einstein Answer : Joseph Thomson...
Radio activity was discovered by : (1) Becqueral (2) Soddy (3) Rutherford (4) Curie Answer : Becqueral...
Which scientist discovered the radioactive element Radium ? (1) Marie Curie (2) Isaac Newton (3) Albert Einstein (4) Benjamin Franklin Answer : Marie Curie ...
Who invented the battery? (1) Roentgen (2) Volta (3) Faraday (4) Maxwell Answer : Volta...
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