Kelvi

The photoelectric threshold wavelength of silver is $3250 \times 10^{-10}$ m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength $2536 \times 10^{-10}$ m is (Given $h = 4.14 \times 10^{-15}$ eVs and $c = 3 \times 10^8$ m/s)

hard

Dual Nature of Radiation and Matter

2017

physics

$0.6 \times 10^6$ m/s

$61 \times 10^3$ m/s

$0.3 \times 10^6$

Explanation

To solve this problem, we will use the photoelectric effect equation. $\\$ The equation for the kinetic energy of the ejected electron is given by: $\\ K.E. = h \nu - \phi \\$ where $\phi$ is the work function of the material, and $\nu$

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