Question

The following are some great discoveries in
1.X-rays
2.Theory of relativity
3.Super conductivity
4.Raman effect
The chronological order in which they were discovered is

• A. 1, 2, 3, 4
• B. 1, 2, 4, 3
• C. 1, 3, 2, 4
• D. 4, 1, 2, 3

Answer 1

The correct option is A 1, 2, 3, 4

Option:(a)