Which of the following pairs is/are correctly matched? Theory/Law Associated Scientist 1. Continental Drift : Edwin Hubble 2. Expansion of Universe : Alfred Wegener 3. Photoelectric Effect : Albert Einstein Select the correct answer using the code given below: Code:
Reviewed by Dalvoy
UPSC Civil Services preparation
- A2 and 3 only
- B3 onlyCorrect
- C2 only
- D1 only
Explanation
The correct answer is B because only the third pair is correctly matched.
Pair 1 is incorrect because the Continental Drift theory was proposed by Alfred Wegener in 1912, not Edwin Hubble.
Pair 2 is incorrect because the theory of the Expansion of the Universe is associated with Edwin Hubble, who provided observational evidence for it in 1929.
Pair 3 is correct because Albert Einstein explained the Photoelectric Effect in 1905, for which he was later awarded the Nobel Prize in Physics.
Therefore, since only statement 3 is accurate, the answer is 3 only.
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