Which of the following pairs of physical phenomenon and the discoverer

Which of the following pairs of physical phenomenon and the discoverer is/are correctly matched ?

1. James Chadwick : Photoelectric effect
2. Albert Einstein : Neutron
3. Marie Curie : Radium

Select the correct answer using the code given below :

[amp_mcq option1=”1, 2 and 3″ option2=”1 and 2 only” option3=”2 and 3 only” option4=”3 only” correct=”option4″]

This question was previously asked in
UPSC NDA-1 – 2021
Only the third pair is correctly matched.
– James Chadwick discovered the neutron in 1932. The photoelectric effect was explained by Albert Einstein in 1905, building on observations by Heinrich Hertz.
– Albert Einstein is famous for his theory of relativity and his explanation of the photoelectric effect, not the discovery of the neutron.
– Marie Curie, along with her husband Pierre Curie, discovered the elements polonium and radium in 1898.
Marie Curie was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person and only woman to win the Nobel Prize twice, and the only person to win the Nobel Prize in two different scientific fields.
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