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A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is?
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A radiation of energy 6.2 eV is incident on the metal surface of work ...
Introduction
When radiation strikes a metal surface, it can cause the emission of electrons. The energy of the incident radiation is compared to the work function of the metal, which is the minimum energy required to release an electron from the surface.
Given Data
- Energy of incident radiation: 6.2 eV
- Work function of the metal: 4.7 eV
Calculating Kinetic Energy
The kinetic energy (KE) of the emitted electron can be calculated using the equation:
KE = Energy of incident radiation - Work function
- Substituting the values:
KE = 6.2 eV - 4.7 eV
Result
- KE = 1.5 eV
This means the emitted electron has a kinetic energy of 1.5 eV after overcoming the work function.
Conclusion
In summary, when radiation of 6.2 eV strikes a metal with a work function of 4.7 eV, the emitted electron carries a kinetic energy of 1.5 eV. This process illustrates the photoelectric effect, where photons provide energy to liberate electrons from a material. Understanding this phenomenon is crucial in fields such as quantum physics and materials science.
When radiation strikes a metal surface, it can cause the emission of electrons. The energy of the incident radiation is compared to the work function of the metal, which is the minimum energy required to release an electron from the surface.
Given Data
- Energy of incident radiation: 6.2 eV
- Work function of the metal: 4.7 eV
Calculating Kinetic Energy
The kinetic energy (KE) of the emitted electron can be calculated using the equation:
KE = Energy of incident radiation - Work function
- Substituting the values:
KE = 6.2 eV - 4.7 eV
Result
- KE = 1.5 eV
This means the emitted electron has a kinetic energy of 1.5 eV after overcoming the work function.
Conclusion
In summary, when radiation of 6.2 eV strikes a metal with a work function of 4.7 eV, the emitted electron carries a kinetic energy of 1.5 eV. This process illustrates the photoelectric effect, where photons provide energy to liberate electrons from a material. Understanding this phenomenon is crucial in fields such as quantum physics and materials science.
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A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is?
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A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is?.
A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A radiation of energy 6.2 eV is incident on the metal surface of work function 4.7 eV. The kinetic energy of electron emitted is?.
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