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Electromagnetic Waves
Who discovered X-rays?
Roentgen
Madam Curie
Rutherford
All of these
A.
Roentgen
Wilhelm Conrad Roentgen. Wilhelm Roentgen, a German professor of physics was the first person to discover electromagnetic radiation in a wavelength range commonly known as X-rays today. Although, many people had observed the effects of X-ray beams before, but Roentgen was the first one to study them systematically.
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In gamma ray emission from a nucleus
Which of the following electromagnetic waves have the smallest wavelength?
X-rays are used in determining the molecular structure of crystalline because
Assertion: The electromagnetic waves are transverse in nature.
Reason: Waves of wavelength 10 µm are radiowave and microwave.
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