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NEET 2006
Exam
NEET
Year
2006
Subject
Physics
Chapter
Dual Nature of Matter

NEET 2006 · Physics · Dual Nature of Matter

When photons of energy h v fall on an aluminium plate (of work...

When photons of energy hvh v fall on an aluminium plate (of work function E0E_0 ), photoelectrons of maximum kinetic energy KK are ejected. If the frequency of radiation is doubled, the maximum kinetic energy of the ejected photoelectrons will be:

Options

  1. AK+hvK+h v
  2. BK+E0K+E_0
  3. C2K2 K
  4. DKK

Correct answer

A. K+hvK+h v

Step-by-step solution

According to given situation hv=E0+K and 2hv=E0+k′⇒k′=k+hv\begin{aligned} & h v & =E_0+K \\ \text{ and } & 2 h v & =E_0+k^{\prime} \\ \Rightarrow & k^{\prime} & =k+h v\end{aligned}
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