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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Physics => Topic started by: methodsboy on August 21, 2009, 01:34:28 pm

Title: Puzzled
Post by: methodsboy on August 21, 2009, 01:34:28 pm: hi every1, i'm a bit confused for this question. I know it seems simple(really, its just finding the gradient - or is it?) but i can't seem to get the correct answer. The answer in BOB is : 6.6 x 10^-34 J s. I keep getting : 4.125 x 10^-15 eV :(.
Thanks, methodsboy

[IMG]http://img7.imageshack.us/img7/772/planksconstant.jpg[/img]
Title: Re: Puzzled
Post by: /0 on August 21, 2009, 04:15:14 pm: I get a gradient of $4.14 \times 10^{-15}$ eVs.

You can convert eV to J by multiplying by the fundamental charge $1.6 \times 10^{-19}$ , since

$1eV=1.6 \times 10^{-19}J$
Title: Re: Puzzled
Post by: methodsboy on August 21, 2009, 04:38:33 pm: Quote from: /0 on August 21, 2009, 04:15:14 pm
I get a gradient of $4.14 \times 10^{-15}$ eVs.

You can convert eV to J by multiplying by the fundamental charge $1.6 \times 10^{-19}$ , since

$1eV=1.6 \times 10^{-19}J$
lol im so stupid; i forgot to convert. thanks /0 :)