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Which of the following was discovered by W.C. Roentgen?
  • a)
    Washing Soda
  • b)
    X-rays
  • c)
    Telegraph
  • d)
    Submarine
Correct answer is option 'B'. Can you explain this answer?
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Which of the following was discovered by W.C. Roentgen?a)Washing Sodab)X-raysc)Telegraphd)SubmarineCorrect answer is option 'B'. Can you explain this answer?
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