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The de-Broglie wavelength of an electron is 1.0 nm. What is the retarding potential required to stop it?​
  • a)
    1.5 V
  • b)
    3.5 V
  • c)
    6.5 V
  • d)
    4.5 V
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The de-Broglie wavelength of an electron is 1.0 nm. What is the retard...
λ=h/P
Here P= √2mk
K=kinetic energy
λ=h/√2mk
By energy conversion
K=eVs
λ=h/√2meVs
√Vs=h/ λ√2me
Vs=h2/ λ2me
Vs=(6.626x10-34)2/(1x10-9)2x2x9.11x10-31xe
Where e=1.602x10-19
Vs=43.9x10-68/29.1x10-68
   =1.508v
Vs=1.5v
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The de-Broglie wavelength of an electron is 1.0 nm. What is the retard...
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The de-Broglie wavelength of an electron is 1.0 nm. What is the retarding potential required to stop it?​a)1.5 Vb)3.5 Vc)6.5 Vd)4.5 VCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The de-Broglie wavelength of an electron is 1.0 nm. What is the retarding potential required to stop it?​a)1.5 Vb)3.5 Vc)6.5 Vd)4.5 VCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The de-Broglie wavelength of an electron is 1.0 nm. What is the retarding potential required to stop it?​a)1.5 Vb)3.5 Vc)6.5 Vd)4.5 VCorrect answer is option 'A'. Can you explain this answer?.
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