What was the name of the bomb dropped on Hiroshima?

The bomb dropped on Hiroshima was called "Little Boy." This atomic bomb, which was dropped on August 6, 1945, was the first nuclear weapon used in warfare and played a significant role in the conclusion of World War II. It relied on uranium-235 as its fissile material and was designed to cause massive destruction with its explosion.

The other choices do not accurately represent the bomb used in this historic event. "Fat Man," a separate bomb, was dropped on Nagasaki shortly after "Little Boy." "Big Boy" and "Atomic Thunder" have no historical significance as names for the bombs used during World War II. Recognizing the specific names and their implications is crucial for understanding the historical context and impact these weapons had on warfare and international relations.