path difference is pie.... why..... its is thin flim interference..... i just want to know.... why we wrote pie=lamda/2
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bhi is ma batno ke sha
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HEYA...
ANSWER...
Because 2π radians = 360º
360º = 1 wavelength (λ)
ymsinkx1=ymsink(x1+λ)=ymsin(kx1+kλ).ymsinkx1=ymsink(x1+λ)=ymsin(kx1+kλ).
A sine function repeats itself after an increment of 2π. So,
kλ=2π
k=2π\λ
now taking the constant
π=λ/2
which is wave-number, the spatial rate of change of phase or wave-cycle.
hope it's helpful
ANSWER...
Because 2π radians = 360º
360º = 1 wavelength (λ)
ymsinkx1=ymsink(x1+λ)=ymsin(kx1+kλ).ymsinkx1=ymsink(x1+λ)=ymsin(kx1+kλ).
A sine function repeats itself after an increment of 2π. So,
kλ=2π
k=2π\λ
now taking the constant
π=λ/2
which is wave-number, the spatial rate of change of phase or wave-cycle.
hope it's helpful
somnath28:
explain more with pictures
i understood... but muje bo sine ke sath kya kiya bo samja nahi.. mai samja gya kya se kya huya.. lakin bo sine ka kiya tumne
yaha pe k kya hai
yes yes...
uska eqn kya hai bro
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