An electromagnetic wave of wavelength ' ' is incident on a photosensitive surface of…
Physics · JEE Main · NTA Exams — Dual Nature of Matter and Radiation
An electromagnetic wave of wavelength 'λ' is incident on a photosensitive surface of negligible work function. If 'm' mass is of photoelectron emitted from the surface has de-Broglie wavelength λd, then :
- \(\lambda=\left(\frac{2 h}{m c}\right) \lambda_{d}^{2}\)
- \(\lambda=\left(\frac{2 m}{h c}\right) \lambda_{d}^{2}\)
- \(\lambda_{d}=\left(\frac{2 m c}{h}\right) \lambda^{2}\)
- \(\lambda=\left(\frac{2 m c}{h}\right) \lambda_{d}^{2}\)
Answer
(D) = ( 2 m c h ) _ d ^ 2
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