Correct option is B
The correct answer is (b) W.K. Roentgen.
Discovery of X-rays:
- Scientist: Wilhelm Conrad Roentgen (W.K. Roentgen).
- Year of Discovery: 1895.
Significance:
- Roentgen discovered X-rays while experimenting with cathode rays in a darkened room.
- He noticed an unknown radiation that could pass through materials like paper and human flesh but left shadows of denser objects like bones on photographic plates.
- He named this radiation "X-rays", where "X" signifies something unknown.
Contributions:
- X-rays revolutionized medical diagnostics by enabling doctors to see inside the human body non-invasively.
- Roentgen received the first Nobel Prize in Physics in 1901 for his discovery.
Additional Information:
- Albert Einstein: Known for the theory of relativity and the photoelectric effect, which explained the particle nature of light.
- Ernest Rutherford: Known as the father of nuclear physics; discovered the nucleus and proposed the planetary model of the atom.
- J.J. Thomson: Discovered the electron and proposed the "plum pudding model" of the atom.
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