Question : Who discovered electron?
Option 1: E. Goldstein
Option 2: J. J. Thomson
Option 3: Ernest Rutherford
Option 4: J. Chadwick
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Correct Answer: J. J. Thomson
Solution : The correct option is - J. J. Thomson
The electron was the first subatomic particle to be discovered, and J. J. Thomson, a British physicist and recipient of the Nobel Prize in Physics, is credited with its discovery. While examining cathode rays, which he found to be composed of negatively charged particles far smaller than atoms, J. J. Thomson made the discovery of the electron in 1897.
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Question : Radioactivity was discovered by
Option 1: Rutherford
Option 2: Henri Becquerel
Option 3: Roentgen
Option 4: Einstein
Question : Who discovered Oxygen?
Option 1: Carl Scheele
Option 2: Hooke
Option 3: Heisenberg
Option 4: Williams
Question : Direction: In the given question, select the related letter from the given alternatives.
A – E : R – V :: B – F : ?
Option 1: G – J
Option 2: V – Q
Option 3: F – J
Option 4: E – J
Question : Who discovered electromagnetic nature of light?
Option 1: Snell
Option 2: Newton
Option 3: Maxwell
Option 4: Young
Question : Who invented the Centigrade scale?
Option 1: Anders Celsius
Option 2: Daniel Gabriel Fahrenheit
Option 3: William Thomson
Option 4: Wright brothers
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