1.

Which of the following pairs of physical phenomenon and the discover is/are correctly matched? 1. James Chadwick Photoelectric 2. Albert Einstein Neutron 3. Marie Curie RadiumSelect the correct answer using the code given below:

A. 1 and 2 only
B. 2 and 3 only
C. 3 only
D. 1, 2 and 3
Answer» E.


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