Question

पदार्थ की चौथी अवस्था प्लाज्मा की खोज किसने व कब की

Answer 1

It is found by
Sir William Crookes.

Answer 2

Answer: William krucks in 1879

Explanation:

plazma ki khoz Williams krucks ne 1879 me ki thi kintu ise plazma name Irving Langmuir ne 1927 me diya tha

Williams krucks ki banayi krucks nali ki help se hi sir J. J. Thomson ne cathode ray ki khoj ki thi