NEET Exam > NEET Questions > Monochromatic light incident on a metal surfa...
Start Learning for Free
Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove?
Most Upvoted Answer
Monochromatic light incident on a metal surface emits electrons with k...
The photoelectric effect and the energy of photons
The photoelectric effect is the phenomenon where electrons are emitted from a material when light is incident upon it. This effect can be explained using the particle nature of light, where light is composed of particles called photons.
According to the photoelectric effect, electrons are only emitted from a material if the energy of the incident photons is greater than or equal to the work function of the material. The work function is the minimum energy required to remove an electron from the material.
Given information and what it implies
In this question, monochromatic light incident on a metal surface emits electrons with kinetic energies ranging from zero to 2.6 eV. This means that the energy of the incident photons is equal to or greater than 2.6 eV, as kinetic energy is given by the equation KE = E_photon - work function.
The work function of the material is not explicitly provided in the question. However, we are given that the tightly bound electron requires 4.2 eV to remove. This implies that the work function of the material is equal to 4.2 eV, as the work function is the minimum energy needed to remove an electron.
Determining the least energy of the incident photon
To determine the least energy of the incident photon, we need to consider the case where the kinetic energy of the emitted electron is zero. In this case, the energy of the incident photon is equal to the work function.
E_photon = work function = 4.2 eV
Therefore, the least energy of the incident photon is 4.2 eV.
In summary
- The photoelectric effect explains the emission of electrons from a material when light is incident upon it.
- Electrons are emitted only if the energy of the incident photons is greater than or equal to the work function of the material.
- The given information implies that the work function of the material is 4.2 eV.
- The least energy of the incident photon is equal to the work function, which is 4.2 eV.
The photoelectric effect is the phenomenon where electrons are emitted from a material when light is incident upon it. This effect can be explained using the particle nature of light, where light is composed of particles called photons.
According to the photoelectric effect, electrons are only emitted from a material if the energy of the incident photons is greater than or equal to the work function of the material. The work function is the minimum energy required to remove an electron from the material.
Given information and what it implies
In this question, monochromatic light incident on a metal surface emits electrons with kinetic energies ranging from zero to 2.6 eV. This means that the energy of the incident photons is equal to or greater than 2.6 eV, as kinetic energy is given by the equation KE = E_photon - work function.
The work function of the material is not explicitly provided in the question. However, we are given that the tightly bound electron requires 4.2 eV to remove. This implies that the work function of the material is equal to 4.2 eV, as the work function is the minimum energy needed to remove an electron.
Determining the least energy of the incident photon
To determine the least energy of the incident photon, we need to consider the case where the kinetic energy of the emitted electron is zero. In this case, the energy of the incident photon is equal to the work function.
E_photon = work function = 4.2 eV
Therefore, the least energy of the incident photon is 4.2 eV.
In summary
- The photoelectric effect explains the emission of electrons from a material when light is incident upon it.
- Electrons are emitted only if the energy of the incident photons is greater than or equal to the work function of the material.
- The given information implies that the work function of the material is 4.2 eV.
- The least energy of the incident photon is equal to the work function, which is 4.2 eV.
Community Answer
Monochromatic light incident on a metal surface emits electrons with k...
Answer is 6.8 eV u can solve it by using formula E= W +kinetic energy
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove?
Question Description
Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove?.
Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove?.
Solutions for Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? defined & explained in the simplest way possible. Besides giving the explanation of
Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove?, a detailed solution for Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? has been provided alongside types of Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? theory, EduRev gives you an
ample number of questions to practice Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup