1. Tardigrade
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  4. The photoelectric threshold for a certain metal surface is 330 mathringA. What is the maximum kinetic energy of the photoelectrons emitted, if radiations of wavelength 1100 mathringA are used ?

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Q. The photoelectric threshold for a certain metal surface is $330 \,\mathring{A}$. What is the maximum kinetic energy of the photoelectrons emitted, if radiations of wavelength $1100\,\mathring{A}$ are used ?

Dual Nature of Radiation and Matter

Solution:

Since $\lambda$ incident is greater than threshold wavelength. No electron will be ejected.