What device did Oliphant help develop that made microwave radar possible?
Cavity magnetron
Ultra high frequency antenna
Radar detector
Signal jammer
Answer
The cavity magnetron is a device that generates microwaves by applying a high voltage to a cathode in the presence of a magnetic field. It was invented by John Randall and Harry Boot at the University of Birmingham in 1940. The cavity magnetron made microwave radar possible, which was a key technology in the Allied victory in World War II.
The Remarkable Mark Oliphant: A Quiz on Australia's Distinguished Physicist
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