??? ?? ???? ????????? ????. ?? ???????? ???????? ???????, ??? ?????? .

? ?????? , ????? ?????????? (?? ??? ) ?? ????? ??????? ????? ?? ???? ???????? ???????? ??? ????? ???. ????? ??? ??? ??? ???? ??????? ???????? - ??????? ??? ???? ???????? ???? ???? ??? ??? ??? ????. ?? ??????? ???? ???? ?-f ???? ????? ? ????? ??????? ?????????? ? ??? (Hz), ???? ??? ??? ??? ????? ??? ? ????? . ??????, ??? ??????? : ??? ???? ??????? ?????? ??? 50 ???, ????? ???? ?????? ????? ????????? ???? ?? 50 ??????? ??? ?????.

?? ?? ?????? "???" ?"??????" ?????? ????????, ??????? ?????? ????? ???? ?????? ?????? ?????. ?????? ? ?????????? ?? ?????? ???? ?????? ????? ???, ?? ? ?????? ???? ????? ??? ??? ???????. ??? ????? ?? ???? ???????? ??????? ?????? ?????? ???, ???? ??????? (??????? ????? "?????? ???????" ???????? ???????, "?????? ???????", ??????? ${\displaystyle \!\ \omega ={2\pi f}}$) ????? ?? ???????? ?????? ?????? ????????? ????????? ????? ????????.

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????? ??????? ????? ?????? ?? ??? ??????? ??????? ?? ???? - ??????? ?????? ?? ???? ?? ??????? ???? ???? ????? ??? ?????? ?????? T. ??? ???? ????? ?????? ?????? ????? ???. ??????? ?? ??????? ?????? ??? ?? ??? ??????, ????: ${\displaystyle f={\frac {1}{T}}}$. ?? ???? ???? ?? ??????? ?? ????? ??????? ???? ??? ?????? ???. ???? ????? ?????? : ${\displaystyle f={\frac {1}{T}}={\frac {1}{({\frac {2{\pi }R}{v}})}}={\frac {v}{2{\pi }R}}}$.

?????? ??????? [ ????? ??? ???? | ????? ]

????? ?? ????? ?????? ?????? ??? ??????? ??????? ${\displaystyle f}$, ??????? ${\displaystyle f}$ ??????? ??????. ???? ???? ?? ????? (?????) ?- ${\displaystyle 2{\pi }}$ ??????? ????? ????? ?????? ???? ?? ${\displaystyle 2{\pi f}}$ ??????? ??????. ?? ????? ??????? ???????? ?? ???? ${\displaystyle \omega ={\frac {d\theta }{dt}}}$. ??? ???? ?????: ${\displaystyle \!\ \omega ={2\pi f}}$, ??????? ?- ${\displaystyle {\omega }}$ ?????? ??????? ????? ?- ${\displaystyle f}$. ????? ???, ?? ?- ${\displaystyle {\omega }}$ ?? ?????? ?? ??????, ??? ????? ?????? ??????? ?????? ???????? ??????.

???? ??????? ??????? ???????? ????? ??????? ??????? ??? ???? ?? ????? ????? ${\displaystyle {\pi }}$, ???? ?? ????? ???? ?? ?? ? ?????? ?? ?????? ???????? ??? ??? ????? ??????? ?????? ?????? ????? ?? ???? ?????? . ???? ?????? ??????? ???????? ??? ??????? ????????, ?? ???? ??????? ???? ?????? ????? ?????? ??????? (???? ???? RLC ) ??? ??? ?????? ??????? ???????.

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????? ? ???? ??????? ?? ??? ??? ??? ???? ?????? ???? ???? ?? ???? ?????? ???, ?????? ?????? ?????. ??? ????? ????? ??? ?? ?????? ???? ????? ?? ??? ???????: ${\displaystyle \ y(x,t)=\sin(kx-\omega t)}$, ???????? ???????? ??? ??? ω. ‏k ??? ???? ??? ????? ??? ??????? ???? ? ??? ?????? . ???? ??? ???? ?? ??? ??????? ????? ????? ????? ????? ??? ??????? ???????? ????? ?? ??? ??????? ????? ????. ??????? ?? ?? ???? ???? ??? ?????? ????? ???? ???? ??? ???: ${\displaystyle f={\frac {v}{\lambda }}}$. ???? ??? ????? ???????: ${\displaystyle \,\omega =vk}$.

?????? ?????? [ ????? ??? ???? | ????? ]

???? ????? ?? ??? ????????? ????????? ????? ?? ???????? ????? ? ??????? (?? ?????????? ??????? ) ?????? ????? ?? ??? ??? ?????? , ??? ??? ????????? ????? ????? ???????? ???????? ?? ??? ????? ?????? . ????? ?????? ????? ?? ???????? ?? ???????? - ???? ?????? ???????? ?? ?? ?????? ???? ??? ??????, ??? ?? ?????? ??? ? ?????????? ?? ?????? . ??? ?????? ????? ??? ? ????? ?? ????? ?? ?? ????? ???????? ????-????? ???? ????? ???? ?? ?????? ?? ??? ???????, ?? ???????? ?? ????? ?????. ???????? ??????? ????? ?? ???? ??? ????? ?????? ??????? ????? ???? ???? ??????? ?????? ????? ?????? ?? ?????? , ??? ???? ?????? ?? ?????? ???? ???????????.

?????? ??????? ?????? ????? ???? ?????? ????? ?????? ????, ??? ???? ??? ?????? ???? ???? ??. ?????? ????? ?????? ??????? ????????????? ????? ???? ???? ?????? ????? ? ????? ???? . ?????? ???? ???? ???? ?? ?????? ?? ?? ????? ?????? ?? ?????? ???? ????????? ??????? ???, ???? ??????? ???? ?????? ???? ????? ?????? ?????? - ?????????? . ????? ?? ?????? ???? ??? ?????? ????.

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