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When radiation of wavelength λ is incident on a metallic surface, the stopping potential is 4.8 volts. If the same surface is illuminated with radiation of double the wavelength, then the stopping potential becomes 1.6 volts. Then the threshold wavelength for the surface is
  • a)
    2 λ
  • b)
    4 λ
  • c)
    6 λ
  • d)
    8 λ
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
When radiation of wavelength λ is incident on a metallic surfac...
From Einsteins photoelectric equation:
eV0 = hv - hv0
 
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Most Upvoted Answer
When radiation of wavelength λ is incident on a metallic surfac...
Is shorter, it has more energy. This is because energy is inversely proportional to wavelength. As the wavelength decreases, the energy of the radiation increases.
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When radiation of wavelength λ is incident on a metallic surface, the stopping potential is 4.8 volts. If the same surface is illuminated with radiation of double the wavelength, then the stopping potential becomes 1.6 volts. Then the threshold wavelength for the surface isa)2 λb)4 λc)6 λd)8 λCorrect answer is option 'B'. Can you explain this answer?
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When radiation of wavelength λ is incident on a metallic surface, the stopping potential is 4.8 volts. If the same surface is illuminated with radiation of double the wavelength, then the stopping potential becomes 1.6 volts. Then the threshold wavelength for the surface isa)2 λb)4 λc)6 λd)8 λCorrect answer is option 'B'. 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 When radiation of wavelength λ is incident on a metallic surface, the stopping potential is 4.8 volts. If the same surface is illuminated with radiation of double the wavelength, then the stopping potential becomes 1.6 volts. Then the threshold wavelength for the surface isa)2 λb)4 λc)6 λd)8 λCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When radiation of wavelength λ is incident on a metallic surface, the stopping potential is 4.8 volts. If the same surface is illuminated with radiation of double the wavelength, then the stopping potential becomes 1.6 volts. Then the threshold wavelength for the surface isa)2 λb)4 λc)6 λd)8 λCorrect answer is option 'B'. Can you explain this answer?.
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