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Author Topic: Edexcel PHYSICS Doubts  (Read 137794 times)

Offline Ibiza279

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Re: Edexcel PHYSICS Doubts
« Reply #120 on: June 08, 2010, 01:37:20 pm »
does anyone noe where can i check out the student guide for physics online ???
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Offline Darth Austrakast

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Re: Edexcel PHYSICS Doubts
« Reply #121 on: June 08, 2010, 03:54:23 pm »
i need the ryt answer wid explanation for this question
5.   Two points on a progressive wave differ in phase by   radian. The distance between them is 0.50 m. The frequency of the oscillations is 10 Hz. The maximum speed of the wave is
A   2.50 m s–1
B   5.00 m s–1
C   12.5 m s–1
D   40.0 m s–1
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Offline Darth Austrakast

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Re: Edexcel PHYSICS Doubts
« Reply #122 on: June 08, 2010, 05:49:29 pm »
ummm.............. cant ne 1 solve this????  ??? ???


By the way wat r u'r predictions for unit 2???
hope it isnt a killer xam like unit 1  :P
 
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Offline Ibiza279

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Re: Edexcel PHYSICS Doubts
« Reply #123 on: June 08, 2010, 06:15:56 pm »
Quote from: Darth Austrakast on June 08, 2010, 03:54:23 pm
i need the ryt answer wid explanation for this question
5.   Two points on a progressive wave differ in phase by   radian. The distance between them is 0.50 m. The frequency of the oscillations is 10 Hz. The maximum speed of the wave is
A   2.50 m s–1
B   5.00 m s–1
C   12.5 m s–1
D   40.0 m s–1


how many radian is the phase difference of ?
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live life like you'll never die but don't die like you never lived but then again its a saying n i don't believe in saying much so jus forget it . . .

Offline Darth Austrakast

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Re: Edexcel PHYSICS Doubts
« Reply #124 on: June 08, 2010, 06:28:07 pm »
oh srry its by "pi" my bad
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Offline Ibiza279

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Re: Edexcel PHYSICS Doubts
« Reply #125 on: June 08, 2010, 06:31:57 pm »
Quote from: Ibiza279 on June 08, 2010, 06:15:56 pm
how many radian is the phase difference of ?

dude could u tell me exactly which year's paper this question is from ?
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Offline Darth Austrakast

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Re: Edexcel PHYSICS Doubts
« Reply #126 on: June 08, 2010, 06:34:00 pm »
well i got this from exam wizard questions
In ms they say the answer is D
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Offline Saladin

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Re: Edexcel PHYSICS Doubts
« Reply #127 on: June 08, 2010, 06:36:38 pm »
Quote from: Darth Austrakast on June 08, 2010, 06:34:00 pm
well i got this from exam wizard questions
In ms they say the answer is D

It is not pi it is pi/4. That should explain a lot more.
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Offline Darth Austrakast

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Re: Edexcel PHYSICS Doubts
« Reply #128 on: June 08, 2010, 06:38:39 pm »
eah thats wat i was thinking too
srry for the inconvenience
any tips fr the xam? any predictions?
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Offline Saladin

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Re: Edexcel PHYSICS Doubts
« Reply #129 on: June 08, 2010, 06:42:38 pm »
Quote from: Darth Austrakast on June 08, 2010, 06:38:39 pm
eah thats wat i was thinking too
srry for the inconvenience
any tips fr the xam? any predictions?

Yes, there are going to be 10 multiple choice questions.! :P
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Offline Ibiza279

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Re: Edexcel PHYSICS Doubts
« Reply #130 on: June 08, 2010, 06:47:59 pm »
Quote from: Darth Austrakast on June 08, 2010, 06:38:39 pm
eah thats wat i was thinking too
srry for the inconvenience
any tips fr the xam? any predictions?

lol good one engraved :P

well i was thinking so hard on the question that i remembered i was hungry, so im gonna go n eat something, b bak in half an hour ! :D
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live life like you'll never die but don't die like you never lived but then again its a saying n i don't believe in saying much so jus forget it . . .

Offline Darth Austrakast

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Re: Edexcel PHYSICS Doubts
« Reply #131 on: June 08, 2010, 06:49:13 pm »
@engraved= =_=...................lol
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Offline Fenomenoe9

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Re: Edexcel PHYSICS Doubts
« Reply #132 on: June 08, 2010, 07:20:46 pm »
Freaking out by Nature of light edexcel does any1 have some good notes on them because i really dont have any much time and im doing pastpapers but its not helping as im only copying from the markscheme and not quite understanding. thanksss
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Offline Ascer Zayan

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Re: Edexcel PHYSICS Doubts
« Reply #133 on: June 08, 2010, 07:40:18 pm »
How can u find the Number of Photons ( IN General ) ??? assuming tht he gave u the energy??
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Offline Ibiza279

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Re: Edexcel PHYSICS Doubts
« Reply #134 on: June 08, 2010, 07:54:49 pm »
Quote from: Ascer Zayan on June 08, 2010, 07:40:18 pm
How can u find the Number of Photons ( IN General ) ??? assuming tht he gave u the energy??

jus divide the energy by charge, that is for example, i hav 2 joules of energy, so my photons will b 2/1.6x10^-19 which is gonna b a huge number, so don't worry,cause the energy given out by each photon is really low.

jus remember this, if u want to find the photon, then its energy divided by charge, if u want to find the energy, then its photon x charge
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live life like you'll never die but don't die like you never lived but then again its a saying n i don't believe in saying much so jus forget it . . .
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