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Why photoelectrons ejected from a metal ...

Why photoelectrons ejected from a metal surface have different kinetic energies although the frequency of incident photons are same ?

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`KE =hnu-hnu_0`. The electrons in the atom of metal occupy different energy levels, thus have different minimum energy required to be ‘ejected’ from the atom. So the `e^-` with higher energy will have higher kinetic energy.
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CBSE COMPLEMENTARY MATERIAL-DUAL NATURE OF MATTER AND RADIATION & ATOMS AND NUCLEI-VERY SHORT ANSWER QUESTIONS (2 mark)
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  2. Do all the photons have same dynamic mass ? If not, Why ?

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  3. Why photoelectrons ejected from a metal surface have different kinetic...

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  4. Find the ratio of de-Broglie wavelengths associated with two electrons...

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  5. Explain the term stopping potential and threshold frequency.

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  6. How does the maximum kinetic energy of emitted electrons very with the...

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  9. Which of the following radiations alpha,beta and gamma are : similar...

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  10. Which of the following radiations alpha,beta and gamma are : (ii) e...

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  11. Which of the following radiations alpha,beta and gamma are : travel...

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  12. Which of the following radiations alpha,beta and gamma are : simila...

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  15. In the ground state of hydrogen atom orbital radius is 5.3 xx 10^(-11...

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  16. Calculate the percentage of any radioactive substance left undecayed a...

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  17. Why is the density of the nucleus more than that of atom ?

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  19. What is the effect on neutron to proton ratio in a nucleus when beta^(...

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  20. Why must heavy stable nucleus contain more neutrons than protons ?

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