Q. 19. W. C. Roentgen was working in his laboratory with which tube?

A. Coolidge tube

B. Crooke`s tube

C. Partial vacuum tube

D. Gas filled tube

Explanation

The year 1895 was historical day in the World history; on 8 November, a German scientist named W. C. Roentgen was working in his laboratory at the Physical Institute of the University of Wurzburg, Germany. He was working the high voltage discharge phenomenon of cathode rays with a type of tube called Crooke`s tube.

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