ATAR Notes: Forum

Archived Discussion => Mathematics and Science => 2012 => End-of-year exams => Exam Discussion => Victoria => Physics => Topic started by: BigAl on November 14, 2012, 07:30:17 pm

Title: about photoelectric effect?
Post by: BigAl on November 14, 2012, 07:30:17 pm
http://imageshack.us/f/96/quantumk.png/ so I talked about the fact that photoelectric effect is dependent on threshold frequency not the intensity of light..and included this diagram...is it ok ?
Title: Re: about photoelectric effect?
Post by: dfgjgddjidfg on November 14, 2012, 07:35:57 pm
how did you go? how many marks do you think you dropped?
Title: Re: about photoelectric effect?
Post by: BigAl on November 14, 2012, 07:37:59 pm
I didnt check the answers 10-15 maybe altogether...
Title: Re: about photoelectric effect?
Post by: Aurelian on November 14, 2012, 09:08:06 pm
http://imageshack.us/f/96/quantumk.png/ so I talked about the fact that photoelectric effect is dependent on threshold frequency not the intensity of light..and included this diagram...is it ok ?

It's a bit vague to say that "the photoelectric effect" is dependent on the threshold frequency... You'd need to have specified exactly which quantities relate to which =/

Additionally, that graph actually reminds me of energy distributions associated with black-body radiation, not the photoelectric effect (though admittedly this is another experimental result supporting the quantum theory of light).
Title: Re: about photoelectric effect?
Post by: BigAl on November 14, 2012, 11:28:32 pm
yea of course I talked in detail..not just one line