Light with a wavelength of 5.0 . 10-7 m strikes a surface that requires 2.0 ev to eject an electron. calculate the frequency of the glven wave.
1.5 x 102
6.0 x 1014
17 x 10-15
6.0 x 10-16

Explanation:

The frequency and the wavelength of an electromagnetic wave are related by the wave equation:

where

is the speed of light

f is the frequency

is the wavelength

For the light wave in this problem,

is the wavelength

So, solving the equation for f, we find its frequency:

c, 1a hope this

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explanation: