E=hv


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Lauryn Shinno 2H
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Joined: Fri Sep 28, 2018 12:24 am

E=hv

Postby Lauryn Shinno 2H » Sat Oct 13, 2018 6:55 pm

In the equation E=hv, I know E stands for energy, but specifically what energy? Like threshold energy or energy of the photons?

Samantha Ito 2E
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Re: E=hv

Postby Samantha Ito 2E » Sat Oct 13, 2018 7:01 pm

E stands for energy per photon.

Tony Chung 2I
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Re: E=hv

Postby Tony Chung 2I » Sat Oct 13, 2018 7:07 pm

The equation tells us that E is the energy of light, which is also called a photon.

Abhi4F
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Re: E=hv

Postby Abhi4F » Sat Oct 13, 2018 11:02 pm

In this equation, E is the energy of light (photons) in Joules.

Soyoung Park 1H
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Re: E=hv

Postby Soyoung Park 1H » Sat Oct 13, 2018 11:26 pm

What does a photon of energy mean?

LorenzoDuvergne3I
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Re: E=hv

Postby LorenzoDuvergne3I » Sat Oct 13, 2018 11:47 pm

Soyoung Park 1H wrote:What does a photon of energy mean?


A photon is the smallest measurable unit of electromagnetic energy (light)

daniela3D
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Re: E=hv

Postby daniela3D » Sun Oct 14, 2018 1:05 am

Keep in mind that a photon is always positive.

Tamera Scott 1G
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Re: E=hv

Postby Tamera Scott 1G » Sun Oct 14, 2018 1:20 am

I've also seen E=hf once, does anyone know if that is the same as E=hv?

904936893
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Re: E=hv

Postby 904936893 » Sun Oct 14, 2018 9:08 am

Tamera Scott 3L wrote:I've also seen E=hf once, does anyone know if that is the same as E=hv?

v is frequency, so I believe f would just be another way to denote frequency.

Brian Chang 2H
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Re: E=hv

Postby Brian Chang 2H » Sun Oct 14, 2018 12:50 pm

E is the energy of light, which is measured in photons. A photon is the quantum of electromagnetic radiation.

Danny Zhang 4L
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Re: E=hv

Postby Danny Zhang 4L » Sun Oct 14, 2018 2:05 pm

Tamera Scott 3L wrote:I've also seen E=hf once, does anyone know if that is the same as E=hv?


I believe that f and v both symbolize frequency. I think that v is just more commonly used in chemistry while f is more preferred in physics.

Xingzheng Sun 2K
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Re: E=hv

Postby Xingzheng Sun 2K » Tue Oct 16, 2018 1:12 am

Since electromagnetic radiation acts like particles, E in this equation stands for the energy per photon.

Zubair Ahmed 1L
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Re: E=hv

Postby Zubair Ahmed 1L » Tue Oct 16, 2018 12:15 pm

yes, E represents the amount of energy per photon. The units for E is Joules.

Noh_Jasmine_1J
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Re: E=hv

Postby Noh_Jasmine_1J » Tue Oct 16, 2018 2:46 pm

Tamera Scott 3L wrote:I've also seen E=hf once, does anyone know if that is the same as E=hv?


v is the symbol for frequency, so both equations are equivalent


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