Meaning of h  [ENDORSED]


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905416023
Posts: 54
Joined: Thu Jul 25, 2019 12:17 am

Meaning of h

Postby 905416023 » Tue Oct 15, 2019 2:31 pm

In the equation E=hv, what does h represent? I know it is the number 6.63x10^-34, but I'm confused with what the number represents.

AKatukota
Posts: 100
Joined: Thu Jul 25, 2019 12:18 am

Re: Meaning of h

Postby AKatukota » Tue Oct 15, 2019 2:33 pm

h represents Plank's constant. So when you graph E vs the frequency of light, the slope of that line is Planck's constant.

Michael Nguyen 1E
Posts: 120
Joined: Sat Aug 17, 2019 12:17 am

Re: Meaning of h

Postby Michael Nguyen 1E » Tue Oct 15, 2019 2:35 pm

h is just the symbol used to represent Planck's constant. I'm not too sure where the specific number comes from, but I doubt that's important for this course. It is just a constant that is particularly useful when calculating the energy of different frequencies of light and other things in quantum mechanics, such as uncertainty.

Natalie Nartz 4F
Posts: 50
Joined: Thu Jul 11, 2019 12:17 am

Re: Meaning of h

Postby Natalie Nartz 4F » Tue Oct 15, 2019 2:55 pm

h symbolizes planck's constant. It is used in this sense to relate energy in one quantum or photon of electromagnetic radiation to its corresponding frequency.

Tiffany Chao 2H
Posts: 117
Joined: Fri Aug 09, 2019 12:17 am

Re: Meaning of h  [ENDORSED]

Postby Tiffany Chao 2H » Tue Oct 15, 2019 3:38 pm

H stands for the constant of proportionality of energy and frequency.

If we were to graph energy (y-axis) and frequency (x-axis) we would have a constant, positive slope. We can use y = mx to model this line meaning y = energy and x = frequency. So it's currently energy = m(frequency). The slope (m) is therefore Planck's constant 6.626 x 10^-34 leading to the final equation of E = hv.

Jacob Motawakel
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Joined: Wed Sep 18, 2019 12:20 am
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Re: Meaning of h

Postby Jacob Motawakel » Wed Oct 16, 2019 11:01 am

The meaning of h is just the change of rate of energy because E=hv, and h is just the slope.


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