Manhattan Project (1942): Whom did President Franklin D. Roosevelt appoint as the scientific head of the U.S. program to develop an atomic bomb? Identify the chief scientific director chosen in 1942. Choose the correct name.

Difficulty: Easy

Enrico Fermi
Ernest Lawrence
Niels Bohr
J. Robert Oppenheimer

Correct Answer: J. Robert Oppenheimer

Explanation:

Given data

We are asked for the scientific head of the Manhattan Project in 1942.

Concept / Approach
The U.S. organized the wartime atomic program under military leadership (Gen. Leslie Groves) with J. Robert Oppenheimer as scientific director at Los Alamos.

Reasoning
Among the prominent physicists listed, the role of scientific head corresponds to Oppenheimer.

Final Answer
J. Robert Oppenheimer.

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