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NEET 2023
Exam
NEET
Year
2023
Subject
Physics
Chapter
Dual Nature of Matter

NEET 2023 · Physics · Dual Nature of Matter

The minimum wavelength of X -rays produced by an electron...

The minimum wavelength of XX-rays produced by an electron accelerated through a potential difference ofVV volts is proportional to:

Options

  1. AV2{V}^{2}
  2. BV\sqrt{V}
  3. C1V\dfrac{1}{V}
  4. D1V\dfrac{1}{\sqrt{V}}

Correct answer

C. 1V\dfrac{1}{V}

Step-by-step solution

Minimum wavelength means maximum energy as E=hcλE = \dfrac{hc}{\lambda}.

Therefore,

eV = \dfrac{hc}{{\lambda}_\min} ⇒ {\lambda}_\min = \dfrac{hc}{eV} ⇒ {\lambda}_\min ∝ \dfrac{1}{V}

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