7th Edition 1A.3


Moderators: Chem_Mod, Chem_Admin

305144105
Posts: 32
Joined: Thu May 10, 2018 3:00 am

7th Edition 1A.3

Postby 305144105 » Tue Oct 16, 2018 6:36 pm

1.3 Which of the following happens when the frequency
of electromagnetic radiation decreases? Explain your reasoning.
(a) The speed of the radiation decreases.
(b) The wavelength of the radiation decreases.
(c) The extent of the change in the electrical field at a given point decreases.
(d) The energy of the radiation increases.

Lia Inadomi 1I
Posts: 62
Joined: Fri Sep 28, 2018 12:15 am

Re: 7th Edition 1A.3

Postby Lia Inadomi 1I » Tue Oct 16, 2018 7:14 pm

For b, wavelength and frequency are inversely related so they cannot both decrease at the same time due to c=lambda*nu

Reva Kakaria 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am
Been upvoted: 1 time

Re: 7th Edition 1A.3

Postby Reva Kakaria 1J » Tue Oct 16, 2018 8:05 pm

The answer is C, the extent of the change in the electrical field at a given point decreases, because since E =hv, when frequency decreases, so does energy. Less energy means less of a change in the electrical field. Hope this helps!

Nicolette_Canlian_2L
Posts: 77
Joined: Fri Sep 28, 2018 12:25 am
Been upvoted: 1 time

Re: 7th Edition 1A.3

Postby Nicolette_Canlian_2L » Tue Oct 16, 2018 8:46 pm

what is the relationship between energy and frequency?

Gillian Ward 1F
Posts: 61
Joined: Fri Sep 28, 2018 12:27 am

Re: 7th Edition 1A.3

Postby Gillian Ward 1F » Wed Oct 17, 2018 9:33 am

Energy and frequency and directly proportional, because when the frequency increases so does the energy.


Return to “Properties of Light”

Who is online

Users browsing this forum: No registered users and 2 guests