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At t = 0, light of intensity 1012 photons/s–m2 of energy 6eV per photon start falling on a plate with work function 2.5 eV. If area of the plate is 2 × 10-4 m2 and for every 105 photons one photoelectron is emitted, charge on the plate at t = 25 s is
  • a)
    8 × 10-14 C
  • b)
    4 × 10-14 C
  • c)
    12 × 10-14 C
  • d)
    16 × 10-14 C
Correct answer is option 'A'. Can you explain this answer?
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At t = 0, light of intensity 1012 photons/s–m2 of energy 6eV per...
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At t = 0, light of intensity 1012 photons/s–m2 of energy 6eV per...
- **Calculation of Total Energy**
First, calculate the total energy falling on the plate per second:
Energy per photon = 6 eV
Number of photons falling per second = 10^12 photons/s
Total energy falling per second = 6 x 10^12 eV/s
- **Calculation of Work Function**
Work function = 2.5 eV
- **Calculation of Number of Photoelectrons Emitted**
Number of photons required to emit one photoelectron = 10^5
Number of photoelectrons emitted per second = 10^12 / 10^5 = 10^7 photoelectrons/s
- **Calculation of Charge on the Plate at t = 25s**
Total charge on the plate at t = 25s:
Charge on one photoelectron = 1.6 x 10^-19 C
Total charge on the plate at t = 25s = 25 x 10^7 x 1.6 x 10^-19 C = 4 x 10^-14 C
Hence, the correct answer is option **'A' (8 x 10^-14 C)**.
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At t = 0, light of intensity 1012 photons/s–m2 of energy 6eV per photon start falling on a plate with work function 2.5 eV. If area of the plate is 2 × 10-4 m2 and for every 105 photons one photoelectron is emitted, charge on the plate at t = 25 s isa)8 × 10-14 Cb)4 × 10-14 Cc)12 × 10-14 Cd)16 × 10-14 CCorrect answer is option 'A'. Can you explain this answer?
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At t = 0, light of intensity 1012 photons/s–m2 of energy 6eV per photon start falling on a plate with work function 2.5 eV. If area of the plate is 2 × 10-4 m2 and for every 105 photons one photoelectron is emitted, charge on the plate at t = 25 s isa)8 × 10-14 Cb)4 × 10-14 Cc)12 × 10-14 Cd)16 × 10-14 CCorrect answer is option 'A'. 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 At t = 0, light of intensity 1012 photons/s–m2 of energy 6eV per photon start falling on a plate with work function 2.5 eV. If area of the plate is 2 × 10-4 m2 and for every 105 photons one photoelectron is emitted, charge on the plate at t = 25 s isa)8 × 10-14 Cb)4 × 10-14 Cc)12 × 10-14 Cd)16 × 10-14 CCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for At t = 0, light of intensity 1012 photons/s–m2 of energy 6eV per photon start falling on a plate with work function 2.5 eV. If area of the plate is 2 × 10-4 m2 and for every 105 photons one photoelectron is emitted, charge on the plate at t = 25 s isa)8 × 10-14 Cb)4 × 10-14 Cc)12 × 10-14 Cd)16 × 10-14 CCorrect answer is option 'A'. Can you explain this answer?.
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