NEET Exam > NEET Questions > A photon of wavelength 4000 Å strikes a...
Start Learning for Free
A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __
- a)0.97 eV
- b)9.7 eV
- c)5.23 eV
- d)3.10 eV
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A photon of wavelength 4000 Å strikes a metal surface, the work ...
Most Upvoted Answer
A photon of wavelength 4000 Å strikes a metal surface, the work ...
Shouldn't A be the answer?
As.. KE=E -- work function
So, 3.10 -- 2.13= 0.97eV
If u agree please report!!
As.. KE=E -- work function
So, 3.10 -- 2.13= 0.97eV
If u agree please report!!
Free Test
FREE
| Start Free Test |
Community Answer
A photon of wavelength 4000 Å strikes a metal surface, the work ...
Angstroms has an energy of approximately 3.1 eV.
To calculate the energy of a photon, we use the equation:
E = hc / λ
Where:
E is the energy of the photon,
h is Planck's constant (6.626 x 10^-34 J·s),
c is the speed of light (3 x 10^8 m/s),
and λ is the wavelength of the photon.
First, we need to convert the wavelength from angstroms to meters:
4000 angstroms = 4000 x 10^-10 meters
Now we can calculate the energy:
E = (6.626 x 10^-34 J·s) * (3 x 10^8 m/s) / (4000 x 10^-10 meters)
Simplifying the equation:
E = (6.626 x 10^-34 J·s) * (3 x 10^8 m/s) / (4 x 10^-6 meters)
E = (6.626 x 3) / 4 x 10^-34-6 J
E = 19.878 x 10^-28 J
Converting joules to electron volts (eV):
1 eV = 1.6 x 10^-19 J
E = (19.878 x 10^-28 J) / (1.6 x 10^-19 J/eV)
E ≈ 0.1236 eV
Therefore, a photon of wavelength 4000 angstroms has an energy of approximately 0.1236 eV.
To calculate the energy of a photon, we use the equation:
E = hc / λ
Where:
E is the energy of the photon,
h is Planck's constant (6.626 x 10^-34 J·s),
c is the speed of light (3 x 10^8 m/s),
and λ is the wavelength of the photon.
First, we need to convert the wavelength from angstroms to meters:
4000 angstroms = 4000 x 10^-10 meters
Now we can calculate the energy:
E = (6.626 x 10^-34 J·s) * (3 x 10^8 m/s) / (4000 x 10^-10 meters)
Simplifying the equation:
E = (6.626 x 10^-34 J·s) * (3 x 10^8 m/s) / (4 x 10^-6 meters)
E = (6.626 x 3) / 4 x 10^-34-6 J
E = 19.878 x 10^-28 J
Converting joules to electron volts (eV):
1 eV = 1.6 x 10^-19 J
E = (19.878 x 10^-28 J) / (1.6 x 10^-19 J/eV)
E ≈ 0.1236 eV
Therefore, a photon of wavelength 4000 angstroms has an energy of approximately 0.1236 eV.
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
A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer?
Question Description
A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer?.
A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer?.
Solutions for A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? 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 A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __a)0.97 eVb)9.7 eVc)5.23 eVd)3.10 eVCorrect answer is option 'D'. Can you explain this answer? 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