Qualification > Sciences

Edexcel PHYSICS Doubts

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MasterMath:
Isnt the distance between 2 adjacent maxima's a wavelength :S?
Look at 2009 June 20b.. >_>
The distance moved by the microphone between two adjacent maxima is
0.050 m.
Calculate the wavelength of the sound wave.
They say the answer is 0.1  ???

elemis:
The distance between 2 adjacent maximas = half a wavelength.

Malak:
Few doubts:

Q11 (c)
Q16  (b) (never understood polarisation)  >:(

Thankyou very much

The Golden Girl =D:

--- Quote from: ang3l on June 04, 2011, 02:58:03 pm ---Few doubts:

Q11 (c)
Q16  (b) (never understood polarisation)  >:(

Thankyou very much

--- End quote ---

Q.11]c)

you measure the distance between the compressions let's say it's 4 cm , you move the compressions backwards by 1 cm , I hope you got it ...if not let me know so that I scan my paper :)

16  (b)

My answer is ;

I would place a Polaroid film and observe .If the intensity decreased it means it might be polarized but I would confirm it by using another Polaroid fiml as an Analyser and rotate it by 90 and observe the intensity of the light ..it would  be darker but not 100 % dark .

I hope you got my idea and excuse my poor representation :P

:D

Malak:
I get he second one,
But for Q11, why would you move it backwards by 1 cm  ???

Thx

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