Qualification > Sciences

IGCSE PHYSICS DOUBTS HERE !!!!

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SauD~:
Hmm, no one was posting in these thread, so i thought of coming up with doubts :P

When sounds refracts:
Speed: Decreases     Wavelength: Decreases     Frequency: Remains Same     

When sounds reflects:
Speed: Remain Same     Wavelength: Remain Same     Frequency: Remains Same     

When sounds diffract:
Speed: Remain Same     Wavelength: Remain Same     Frequency:  Increases/Decrease

Please correct me if i am wrong :)
Thanks :D     

The Golden Girl =D:

--- Quote from: $~SauD~$ on February 22, 2011, 10:34:52 am ---Hmm, no one was posting in these thread, so i thought of coming up with doubts :P

When sounds refracts:
Speed: Decreases     Wavelength: Decreases     Frequency: Remains Same     

When sounds reflects:
Speed: Remain Same     Wavelength: Remain Same     Frequency: Remains Same     

When sounds diffract:
Speed: Remain Same     Wavelength: Remain Same     Frequency:  Increases/Decrease

Please correct me if i am wrong :)
Thanks :D     

--- End quote ---

the red part is wrong , the frequency in diffraction does NOT change

SauD~:

--- Quote from: ~ The Golden Girl ~ on February 22, 2011, 12:27:43 pm ---the red part is wrong , the frequency in diffraction does NOT change

--- End quote ---
but in diffraction, i think something have to be changed :P
am i correct ^ ::)

elemis:

--- Quote from: $~SauD~$ on February 22, 2011, 12:47:39 pm ---but in diffraction, i think something have to be changed :P
am i correct ^ ::)



--- End quote ---

If speed and wavelength remains constant then why should frequency change ? It cant and doesnt change in diffraction.

Diffraction is simply the spreading of waves as it passes through/around an obstacle.

SauD~:

--- Quote from: Ari Ben Canaan on February 22, 2011, 02:16:23 pm ---If speed and wavelength remains constant then why should frequency change ? It cant and doesnt change in diffraction.

Diffraction is simply the spreading of waves as it passes through/around an obstacle.

--- End quote ---
oh ya :)

thanks :)

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