Fluorescence is produced when anode rays strike on:
Correct answer: D. ZnS
- A. Fe
- B. MgO
- C. I
- D. ZnS
Explanation
Anode ray produces fluorescence when strikes on Zinc Sulphide Screen whereas Cathode ray produces fluorescence when strikes on Soda-glass screen.
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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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