## Planck's Constant

$c=\lambda v$

Cooper_Geralds_3B
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Joined: Wed Sep 30, 2020 10:07 pm

### Planck's Constant

Hi,

I must have missed this in lecture, but does anyone know the numerical value of Planck's constant?

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### Re: Planck's Constant

It is 6.626x10^-34 Js.

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Joined: Wed Sep 30, 2020 9:51 pm

### Re: Planck's Constant

Planck’s constant is 6.626x10^-34 J.s and typically assumes the variable h.

Lorraine Medina 3E
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### Re: Planck's Constant

Hi! Planck's constant is 6.626 x 10^-34 Js.

clairehathaway 2J
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Joined: Wed Sep 30, 2020 9:38 pm

### Re: Planck's Constant

Like everyone above said, Planck's constant is 6.626 x 10^-34 Js.
This value and a bunch of other ones that are commonly used in the equations we have been studying (ex. speed of light (c)) can all be found on Dr. Lavelle's website under the "Constants and Equations". Also, I'm pretty sure we will have access to this sheet during exams so you don't have to worry about memorizing any of them!

Cassidy Cheng 1J
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Joined: Wed Sep 30, 2020 9:33 pm

### Re: Planck's Constant

Yup, like the previous response said, you don't have to memorize Planck's constant since it'll be given on the equation sheet, but I have found it to be really helpful to memorize it bc it helps you solve the problem faster! I don't think you should even go out of your way to memorize it bc doing so many of those problems will ingrain the value in your mind.

Navdha Sharma 3J
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Joined: Wed Sep 30, 2020 9:46 pm

### Re: Planck's Constant

As stated in the previous responses, Planck's constant(h) = 6.626 X 10^(-34). I had trouble remembering its value earlier, but as I started doing the textbook questions in the syllabus, I realized that it was being used regularly. So, the repeated usage has permanently etched the value in my head! But don't worry, it will be given in the equation sheet.

Xinying Wang_3C
Posts: 94
Joined: Wed Sep 30, 2020 9:39 pm

### Re: Planck's Constant

Yes, Planck's constant is 6.626 x 10^-34 J/s, and there is no need to memorize it as there are a lot of constants in this chapter, during the quiz/test, the value should be given.