Energy in Photoelectric Effect

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WYacob_2C
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

Energy in Photoelectric Effect

Postby WYacob_2C » Sat Oct 12, 2019 1:54 pm

When the threshold energy is met, will electrons be emitted? Or does the energy of the photon have to exceed the threshold energy in order for electrons to be emitted?

WesleyWu_1C
Posts: 117
Joined: Thu Jul 25, 2019 12:16 am

Re: Energy in Photoelectric Effect

Postby WesleyWu_1C » Sat Oct 12, 2019 1:58 pm

The threshold energy is the bare minimum energy required for an electron to be broken off.

Chanel D_4E
Posts: 57
Joined: Wed Sep 11, 2019 12:17 am

Re: Energy in Photoelectric Effect

Postby Chanel D_4E » Sat Oct 12, 2019 2:01 pm

I think that the threshold energy has to always be greater than or equal to the rest energy in order for the electrons to be emitted.

Wendy 1E
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Re: Energy in Photoelectric Effect

Postby Wendy 1E » Sat Oct 12, 2019 2:14 pm

In order for electrons to be emitted, the energy of the photon has to be greater than OR equal to the threshold energy.

Joelle 3L
Posts: 50
Joined: Sat Jul 20, 2019 12:16 am

Re: Energy in Photoelectric Effect

Postby Joelle 3L » Sat Oct 12, 2019 2:35 pm

Energy below a certain threshold frequency, no matter how intense, will not cause any electrons to be emitted. Energy above the threshold frequency, even if it's not very intense, will always cause electrons to be emitted.

rohun2H
Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

Re: Energy in Photoelectric Effect

Postby rohun2H » Sat Oct 12, 2019 3:42 pm

If threshold energy is surpassed, electrons will be emitted. Given the amount of energy is greater than threshold, the number of electrons emitted is dependent on intensity.


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