Question

Meson was discovered by :
(A). Yukawa
(B). Austin
(C). Moseley
(D). Einstein

Answer 1

Hint:Mesons are the particles that are found in the nucleus. They were discovered by the Japanese Scientist whose name was Yukawa.

Complete step by step answer:
Meson is a tiny-subatomic particle. Subatomic means that they are generally smaller than atoms. They are formed out of quarks in high-energy situations.
Mesons are generally about ⅔ the size of protons or neutrons. We cannot see a meson directly, they are too small for us to see actually. A meson is a kind of boson.
Now , what is boson ? Boson is also a subatomic particle that has zero or integral skin.
All the mesons are unstable. They form and break up again in less than a few hundredths of a microsecond.
Mesons with an electrical charge decay into electrons and neutrinos whereas the mesons without any electrical charge can decay into photons.
Meson was predicted theoretically in 1935 by the Japanese physicist named Yukawa Hideki but the existence of meson was confirmed in 1947 by the team of Cecil Frank powell.
Mesons vary widely in mass, from 140 mega-electron volts to nearly 10 gigaelectron volts. These subatomic particles serve as a useful tool for studying the properties and interaction of quarks. They also provide a means of identifying new quarks.
Hence option (A) is the correct answer.

Note:
Mesons are basically incredibly small subatomic particles that are made of one quark and one antiquark.In particle physics, mesons are hadronic subatomic particles composed of one quark and one antiquark, bound together by strong interactions.