Author Topic: Physics help  (Read 1304 times)

Offline Ghost Of Highbury

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Physics help
« on: May 20, 2009, 10:01:50 am »
Hello
everyone
cud someone plz help me in Paper 3 May/June 2008 First variant paper..Q7.a) and b.)
i have attached the paper
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Offline Ghost Of Highbury

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Re: Physics help
« Reply #1 on: May 20, 2009, 10:04:58 am »
plz explain how do u draw the wave using the wavefronts.???????
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Offline Ghost Of Highbury

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Re: Physics help
« Reply #2 on: May 20, 2009, 10:17:11 am »
astarmathandphysics....plz help...anyone??
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Offline astarmathsandphysics

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Re: Physics help
« Reply #3 on: May 20, 2009, 10:17:26 am »
Someone help. I wont be home for hours

Offline Ghost Of Highbury

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Re: Physics help
« Reply #4 on: May 20, 2009, 10:23:06 am »
k..anyone else?? :(
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Offline AS girl

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Re: Physics help
« Reply #5 on: May 20, 2009, 10:31:36 am »
Properties of the wave after getting reflected:
1) Has same speed
2)Same frequency
3)Same wavelength

Only the direction changes


Properties of the wave after getting refracted
1) Speed decrease
2)Direction changes
3)Wavelength becomes shorter

So the distance of the wavefront becomes shorter...closer to each other but u have to make sure that the distance between each wave front is the same!! I attached a pic but it's not that accurate..i just want u to understand the idea

Hope u understood
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Offline Ghost Of Highbury

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Re: Physics help
« Reply #6 on: May 20, 2009, 11:07:38 am »
hey got it..
thanks a lot IG girl
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Offline AS girl

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Re: Physics help
« Reply #7 on: May 20, 2009, 11:21:45 am »
hey got it..
thanks a lot IG girl

No problem..anytime ;)
If i fall along the way pick me up and dust me off...and if i get too tired to make it..be my breath so i can walk!!