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Pure one Doubt!!

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mousa:
plz can anyone Explain why a = 6 b = 2 c = 3 in Q 4 part a) ?? and answer Part b) find the paper attatched below...

astarmathsandphysics:
Gimme a minute

astarmathsandphysics:
Graph is moved up 3 so c=3
distance from crest to trough is 9--3=12 but for the sine curve it should be 1--1=2 so 6 times bigger so a=6.
The graph packs 2 wavelengths into 0-2pi so b=2

Saladin:
and the answer to part b is 165o or also 11/12pi

mousa:

--- Quote from: astarmathsandphysics on January 29, 2010, 12:56:56 pm ---Graph is moved up 3 so c=3
distance from crest to trough is 9--3=12 but for the sine curve it should be 1--1=2 so 6 times bigger so a=6.
The graph packs 2 wavelengths into 0-2pi so b=2

--- End quote ---

sir, i am confused, can you explain more?? or gimme some notes on this topic,nothin regarding that is mentioned in the book :-\

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