Photoelectric effect can be explained only by assuming that electromagnetic radiation
Correct answer: D. consists of
- A. is a transverse wave
- B. can be polarized
- C. is a longitudinal wave
- D. consists of
Explanation
The photoelectric effect can be explained only by assuming that electromagnetic radiation consists of quanta or photons. This concept was proposed by Albert Einstein.Incorrect Options and Explanations: (a) is a transverse wave - The wave nature of light is evident in phenomena like interference and diffraction but does not explain the photoelectric effect. (b) can be polarized - Polarization is a property of transverse waves, but it does not explain the photoelectric effect. (c) is a longitudinal wave - Electromagnetic waves, including light, are transverse waves, not longitudinal waves.
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About Electromagnetic Waves
Electromagnetic waves consist of mutually perpendicular, oscillating electric and magnetic fields that also remain perpendicular to the direction of propagation. They travel through vacuum at the speed of light and include radio waves, microwaves, infrared, visible, ultraviolet, X-rays and gamma rays. Unlike mechanical waves, they do not require a material medium.
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