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प्रश्न
Give an example each of a metal from which photoelectric emission takes place when irradiated by
- UV light
- visible light.
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उत्तर
- Photoelectric emission takes place when Zn is irradiated with UV radiation.
- Photoelectric emission takes place when Na is irradiated with visible light.
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संबंधित प्रश्न
Find the maximum frequency of X-rays produced by 30 kV electrons.
Define the term "Threshold frequency", in the context of photoelectric emission.
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The work function of a metal is 2.31 eV. Photoelectric emission occurs when the light of frequency 6.4 × 1014 Hz is incident on the metal surface. Calculate
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- the maximum kinetic energy of the emitted electron and
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In the boundary-wall analogy, what does the metal surface represent?
What is the value of \[1\,\mathrm{eV}\] in joules?
Which particles at the surface hold free electrons inside the metal?
Under what condition does an electron escape after external energy is supplied?
What must fall on a metal surface for photoelectric emission to occur?
