JEE Exam > JEE Videos > Physics for JEE Main & Advanced > Photoelectric Effect
Photoelectric Effect Video Lecture | Physics for JEE Main & Advanced
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FAQs on Photoelectric Effect Video Lecture - Physics for JEE Main & Advanced
| 1. What is the photoelectric effect? |  |
Ans. The photoelectric effect is the phenomenon where electrons are emitted from a material when it is exposed to light or electromagnetic radiation of sufficient frequency.
| 2. What is the equation that describes the photoelectric effect? | |
Ans. The equation that describes the photoelectric effect is E = hf - φ, where E is the energy of the emitted electron, hf is the energy of the incident photon, and φ is the work function of the material.
| 3. How does the intensity of light affect the photoelectric effect? | |
Ans. The intensity of light does not affect the photoelectric effect. Instead, the frequency of the incident light is what determines whether electrons will be emitted from the material.
| 4. What is the significance of the threshold frequency in the photoelectric effect? | |
Ans. The threshold frequency is the minimum frequency of light required to eject electrons from a material in the photoelectric effect. If the frequency of the incident light is below the threshold frequency, no electrons will be emitted.
| 5. How does the photoelectric effect support the particle theory of light? | |
Ans. The photoelectric effect supports the particle theory of light as it demonstrates that light behaves as discrete packets of energy called photons, which interact with electrons in a material to eject them.
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Dec 22, 2024 Last updated |
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