Qualification > Sciences
ALL CIE PHYSICS DOUBTS HERE !!!
Rvel Zahid:
--- Quote from: ashwinkandel on April 09, 2012, 04:16:19 pm ---I was a bit unclear last time for q.n 14. Here i have attached another version
--- End quote ---
yeah this mcq was hard to grasp...Thanks :)
one more :D
i can't understand how to calculate phase difference between two waves...
SkyPilotage:
Do you guys agree that the signal to noise ratio is equal to 1 when both the signal and noise have equal power? because I think it should be zero because 10log1 = 0 ! What do you think?
SkyPilotage:
--- Quote from: Rvel Zahid on April 09, 2012, 04:52:07 pm ---yeah this mcq was hard to grasp...Thanks :)
one more :D
i can't understand how to calculate phase difference between two waves...
--- End quote ---
Its like you find the ratio of the wave lag to the wavelength. Here it is 1/2 lamda so thats the phase diff. and destructive interference will occur where they cancel each other out.
Rvel Zahid:
--- Quote from: SkyPilotage on April 09, 2012, 11:02:17 pm ---Its like you find the ratio of the wave lag to the wavelength. Here it is 1/2 lamda so thats the phase diff. and destructive interference will occur where they cancel each other out.
--- End quote ---
ok thanks a bunch.
some more. attached the files below. take ur time not urgent. Thankyou. :)
ashwinkandel:
Rvel Zahid Unless someone else answers your questions , I will answer it tomorrow.
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