M

Mr. Dubey • 52.30K Points
Coach 

Q. Which was the first country to develop an atomic bomb?

(A) russia
(B) united states
(C) china
(D) japan
Correct : Option (B)

Explanation: 
 though germany is the first country where first controlled fission of an atom was carried, united state was the first country to develop an atomic bomb, which was subsequently dropped on the japanese cities hiroshima and nagasaki.

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