When did the United Nations declare the World Physics Year, also known as the Einstein Year, to mark the 100th anniversary of the physicist Albert Einstein?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 3 i.e. 2005.
The United Nations declared the year 2005 as the World Year of Physics, also known as the Einstein Year, to celebrate the 100th anniversary of Albert Einstein’s “miraculous year” in 1905. During that year, Einstein published four groundbreaking papers that revolutionized modern physics, including his theory of special relativity and the famous equation E=mc². The World Year of Physics 2005 was an international celebration aimed at raising public awareness and appreciation of physics. It was organized by UNESCO and the International Union of Pure and Applied Physics (IUPAP) to honor Einstein's immense contribution to science and humanity.