Question

“Fat man” and “Little boy” were terms used for?
a.) Pu bomb
b.) U bomb and H bomb respectively
c.) H bomb
d.) Pu bomb and U bomb respectively

Answer 1

Hint: “Fat Man” and “Little boy” were the codes used for atomic bombs that were dropped on Hiroshima and Nagasaki during World War II.

Complete answer: The Manhattan project was a research and development team formed during the second World War. It was formed in order to produce nuclear weapons that were used during the warfare. The two most known weapons they created were
The Fat man: This bomb had the sphere of heavy Plutonium 239. It had a blast yield of around 21 kiloton. It was dropped over the Japanese city Nagasaki by the United States on 9th August 1945. The core, containing the fillings of Plutonium, was surrounded by blocks of heavy explosives. Once the explosives were fired, it compressed the core, causing an implosion, which in turn set in a nuclear chain reaction.
The Little Boy: This bomb had the sphere of Uranium 235. It had a blast yield of about 15 kiloton. It was dropped over Hiroshima on 6th August 1945. It is considered as the most complex design. This bomb derived its explosive power from nuclear fission of Uranium nuclei.
So, the correct answer is “Option D”.

Additional Information:Fat man was also known as Mark III. Little boy’s design was based on an unsuccessful bomb called “Thin man”.

Note: Fat man had heavier metal, Plutonium 239, Little boy had a slightly lighter metal, Uranium 235.