Would a photon with a wavelength of 475nm have enough energy to eject an electron from metal x? (frequency threshold= 5.6x10^14hz) (wavelength= 3.7x10^-19j)

Yes

Explanation:

is the threshold wavelength

is the threshold frequency =

c is the speed of light having value

Applying the equation as:

Where,  

h is Plank's constant having value

So,

Given,

Since, E > E0, So it can eject.

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