Q. Which of the following is India's first nuclear reactor?
Answer:
Apsara
Notes: Apsara, the first nuclear research reactor in India, stands out as the vanguard for nuclear research in entire Asia. Commissioned on August 4, 1956, it marked the beginning of India's remarkable journey into nuclear research and power generation. Apsara was built with indigenous resources and designed by the Bhabha Atomic Research Centre. Additionally, it gained fame by producing significant isotopes for medicine and agriculture.