Who invented the X-ray?
PYQ SSC JE (Junior Engineer) 2021
Who invented the X-ray?
- A.
Edwin Hubble
- B.
JJ Thomson
- C.
Galileo Galilei
- D.
WK Roentgen
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PYQ SSC JE (Junior Engineer) 2021
Who invented the X-ray?
Edwin Hubble
JJ Thomson
Galileo Galilei
WK Roentgen
Sign up free to check your answer
Sign up free