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X-Ray കണ്ടുപിടിച്ച ശാസ്ത്രജ്ഞൻ ആര് ?
A
എഡിസൺ
B
ഫാരഡെ
C
റോണ്ട്ജൻ
D
ലാവോയ്സിയെ
Answer:
C. റോണ്ട്ജൻ
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റേഡിയേഷൻ ഉറവിടം നിർത്തുമ്പോൾ ഫ്ളൂറസെന്റ് വസ്തുക്കളുടെ തിളക്കം എങ്ങനെയാണ്?
Lightning conductor was invented by