Qualification > Sciences

physics query

(1/1)

Umerhassan:
q no 22 may june 05

the answer i keep getting is A :S

cashem'up:
Young= (F/A)/(delta L /L) we can also rite this Y=FL/Adelta L
lets consider P
Y = FpL/Adelta L
now Q
Y= F2L/(a/2 x delta l )
so Y= Fq4L/A delta L rite

now equate them
FpL/Adelta L=Fq4L/A delta LFpL/A=Fq4L/A
Fp/Fq = 4/1

Umerhassan:
thanx a lot :D

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