Sig Figs in Problem 1.13 (6th Edition)


Moderators: Chem_Mod, Chem_Admin

Alex Alonso - 4F
Posts: 28
Joined: Fri Sep 28, 2018 12:27 am

Sig Figs in Problem 1.13 (6th Edition)

Postby Alex Alonso - 4F » Wed Oct 17, 2018 7:58 pm

In this problem, there are no given sig figs other than the energy levels, which apparently don't count because the final answer for part (a) has 3 sig figs. How is it that the answer has three sig figs?

jonathanjchang2E
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

Re: Sig Figs in Problem 1.13 (6th Edition)

Postby jonathanjchang2E » Wed Oct 17, 2018 10:15 pm

The question asks to calculate the wavelength and since the majority of the wavelengths on the electromagnetic radiation spectrum range from ~300nm to ~1000nm it would only make sense for the answer to be in between those two numbers and have three significant figures, but in this case, I don't think the grader would be too strict on significant figures.

Daniel Chang 3I
Posts: 33
Joined: Fri Sep 28, 2018 12:23 am

Re: Sig Figs in Problem 1.13 (6th Edition)

Postby Daniel Chang 3I » Wed Oct 17, 2018 11:09 pm

It's supposed to be the lowest amount of sig figs from the problem but the TA's said that sig figs shouldn't matter

Desiree1G
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 2 times

Re: Sig Figs in Problem 1.13 (6th Edition)

Postby Desiree1G » Wed Oct 17, 2018 11:22 pm

I don't believe sig figs matter too much in this case, but I usually go with three in those cases. Verify with the TA

Madeera_Mian_3B
Posts: 30
Joined: Fri Sep 28, 2018 12:24 am

Re: Sig Figs in Problem 1.13 (6th Edition)

Postby Madeera_Mian_3B » Thu Oct 18, 2018 10:59 am

I agree with the other replies, don't worry too much on the significant figures on that problem. In most cases you should go to the lowest significant figure, but in that problem I would just go with three significant figures.

Alex Alonso - 4F
Posts: 28
Joined: Fri Sep 28, 2018 12:27 am

Re: Sig Figs in Problem 1.13 (6th Edition)

Postby Alex Alonso - 4F » Sun Oct 21, 2018 8:24 pm

Thanks for all the replies, they really cleared things up.


Return to “Properties of Light”

Who is online

Users browsing this forum: No registered users and 1 guest