Question

When was the first nuclear reactor built?
(a) 1942
(b) 1944
(c) 1945
(d) 1947

Answer 1

Hint: A nuclear reactor is formerly known as an atomic pile. We can say that a nuclear reactor is a device that is used to initiate and control a self-sustained nuclear chain reaction. Nuclear reactors are used for the generation of electricity. They were also used in nuclear marine propulsion.

Complete answer:
The world's first nuclear reactor which was built in 1942 is known to be Chicago Pile 1 in the present world. The scientist Enrico Fermi was appreciated by every person by prizing him with a Nobel Prize.

Earlier in the year of 1942, a group of scientists led by Fermi congregated at the University of Chicago in order to develop their theories. These people made the construction of the University of Chicago's Stagg Field football stadium.

By December of the year 1942, these people were ready for construction to commence on the world's first nuclear reactor. The scientist Enrico Fermi who along with 48 of his colleagues flourished in accomplishing the preparation of the reactor, the world’s first man-made controlled nuclear chain reaction. Thereby these people successfully recognized the aptitude of manhood to control the release of nuclear energy.

Hence, the correct answer is option (A).

Note: The nuclear power is the fifth-largest source of electrical energy in our country after the powers obtained from coal, gas, hydroelectricity, and wind. The nuclear reactor named Named Apsara was the first nuclear reactor that was housed in a 100 x 50 x 70 concrete building in our country. Named Apsara was the first nuclear reactor in India and Asia. It reached criticality at 3:45 p.m on 4 August 1956. It was installed by Prime Minister Nehru on 20 January 1957.