No, the claim that Niels Bohr rejected quantum mechanics in later life and turned to religious beliefs is not accurate. Niels Bohr, the Danish physicist and one of the pioneers of quantum mechanics, remained committed to the principles and foundations of quantum theory throughout his life. He made significant contributions to the development and understanding of quantum mechanics, particularly with his model of the atom and his concept of complementarity.
While Bohr did express philosophical and metaphysical reflections on the implications of quantum theory, he did not abandon the scientific framework or embrace religious beliefs as an alternative. Bohr's views on quantum mechanics were complex and influenced by his philosophical outlook, which emphasized the role of human observation and the limitations of language in describing reality.
Bohr was also interested in the interface between science and society, and he engaged in philosophical discussions with other scientists, including Albert Einstein, on the interpretation of quantum mechanics. These debates, often centered on the concept of determinism and the completeness of the theory, did not lead Bohr to reject quantum mechanics.
Therefore, the idea that Bohr rejected quantum mechanics and turned to religious beliefs is a misconception. He remained committed to the scientific principles and concepts of quantum theory throughout his life.