The work function of a metal is 1 eV. Light of wavelength $3000 \, \text{\AA}$ is incident on this metal surface. The velocity of the emitted photoelectrons will be?

Question

$10 \, \text{m/s}$

$1 \times 10^3 \, \text{m/s}$

$1 \times 10^4 \, \text{m/s}$

$1 \times 10^6 \, \text{m/s}$

Solution

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