X-rays are also called:
Correct answer: D. Short wavelength rays
- A. Long wavelength rays
- B. Low energy waves
- C. Low frequency rays
- D. Short wavelength rays
Explanation
X-rays are highly energetic, high frequency and short wavelength radiations. Their wavelength is in the range 0.01-10 nm. These are invisible and penetrating rays.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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