A hydrogen bomb was not dropped on Japan. It was dropped years later as a test and to determine how it acted in comparison to the plutonium and uranium bombs.
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No, the bomb dropped on Hiroshima was an atomic bomb using uranium as the fissile material.
Tsar Bomba was a hydrogen bomb which was actually detonated and not dropped. The test was held on October 30,1961. Tsar Bomba was the most powerful nuclear weapon ever detonated.
Only two atomic bombs were used against man kind in war and neither of those were a thermonuclear or hydrogen bomb.
The first successful hydrogen bomb was detonated (not launched or dropped--it was a 62-ton fixed structure) on November 1, 1952.
The hydrogen bomb was not invented until the 1950's. The planes that dropped the first fission-type atomic bombs in World War II are the Enola Gay and Bockscar.
No hydrogen bombs were dropped on Vietnam. No nuclear weapons of any kind were used in Vietnam.
Of course not, it was just for fun (by the way the bombs at Hiroshima and Nagasaki were uranium bombs and not hydrogen)
Those hydrogen bombs were 20 times stronger at the beginning and later all got worst in the arms race.
A hydrogen bomb was tested in the 1950s but there have never been any dropped in aggression. In fact no nuclear bombs have been used in action since the atomic bombs were dropped on the Japanese in World War 2.
The H-Bomb, or Hydrogen Bomb, has never been used in warfare- the bombs dropped on japan at the end of WW2 were ATOMIC bombs, which are not as destructive. The Hydrogen Bomb is very much more powerful than the atom bomb, and has only ever been exploded in tests. For full information, Google 'US Hydrogen Bomb' and see what comes up.
A bomb was dropped in Nagasaki.