In which year was India's first nuclear reactor formally inaugurated by Prime minister JL. Nehru?

Correct option is B

The correct answer is (b) 1957.
· India’s first nuclear reactor, named Apsara, was formally inaugurated by Prime Minister Jawaharlal Nehru on 4th August 1957. It was the first nuclear reactor to be built in Asia and was located at the Bhabha Atomic Research Centre (BARC) in Trombay, Maharashtra.
Information Booster:
· Apsara Reactor: A swimming pool-type reactor, it used enriched uranium as fuel and demineralized water as a moderator and coolant.
· Significance: The inauguration of Apsara marked the beginning of India's nuclear research and development program.
· Nuclear Energy in India: The successful operation of Apsara paved the way for more advanced reactors like CIRUS and Dhruva.