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Which of the following Statement(s) is / are correct ?

A. Electron was discovered by J.J. Thomson

B. Theory of Electromagnetic radiation discovered by J.D. Watson

C. Theory of evolution by natural selection discoverd by Charles Darwin

D. Anode rays discovered by Eugen Goldstein

Choose the correct answer from the options given below :

Solution

✅ Correct Option: 2

J.J. Thomson discovered the electron in 1897, Darwin proposed natural selection, and Eugen Goldstein discovered anode (canal) rays. Statement B is incorrect: the theory of electromagnetic radiation is due to James Clerk Maxwell, while J.D. Watson is known for the DNA double helix. So A, C and D only.

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