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Questions and Answers
Which phenomenon can be best explained by the wave theory of light?
Which phenomenon can be best explained by the wave theory of light?
- Diffraction (correct)
- Black body radiation
- Photoelectric effect
- Compton Effect
What does the quantum theory suggest about light?
What does the quantum theory suggest about light?
- Light has no fixed frequency.
- Light behaves purely as a particle without wave characteristics.
- Light travels in energy bundles called photons. (correct)
- Light consists of continuous waves only.
Which of the following phenomena cannot be explained by wave theory?
Which of the following phenomena cannot be explained by wave theory?
- Polarization
- Interference
- Diffraction
- Photoelectric effect (correct)
What is the name of the small packets of energy that light is thought to travel in, according to quantum theory?
What is the name of the small packets of energy that light is thought to travel in, according to quantum theory?
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According to the quantum theory of light, what is the relationship between energy (E) and frequency (ν)?
According to the quantum theory of light, what is the relationship between energy (E) and frequency (ν)?
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Study Notes
Nature of Light
- Light exhibits phenomena like interference, diffraction, polarization, photoelectric effect, and Compton Effect.
- Wave theory explains interference, diffraction, and polarization, demonstrating light's wave-like characteristics.
Wave Theory of Light
- Proven that light behaves as a wave; key behaviors can be satisfactorily described by wave properties.
Quantum Theory of Light
- Quantum theory addresses phenomena not explained by wave theory, such as black body radiation and the photoelectric effect.
- Light consists of energy packets called photons, defined as (hν) where (h) is Planck's constant and (ν) is the frequency of radiation.
- Under quantum theory, light is considered as having both wave and particle characteristics, known as wave-particle duality.
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