Dab tsi yog qhov node ntawm nthwv dej?
Dab tsi yog qhov node ntawm nthwv dej?

Video: Dab tsi yog qhov node ntawm nthwv dej?

Video: Dab tsi yog qhov node ntawm nthwv dej?
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A node yog ib tug taw tes raws ib tug sawv yoj qhov twg yoj muaj qhov tsawg kawg nkaus amplitude. Piv txwv li, hauv ib txoj hlua vibrating guitar, qhov kawg ntawm txoj hlua yog nodes . Qhov opposite ntawm a node yog anti- node , ib tug point qhov twg lub amplitude ntawm lub sawv yoj yog qhov siab tshaj plaws. Cov no tshwm sim nruab nrab ntawm lub nodes.

Tsis tas li ntawd, dab tsi yog node thiab Antinode hauv nthwv dej?

A node yog qhov twg lub amplitude ntawm lub yoj yog zero. Antinodes yog qhov twg qhov amplitude (zoo ntawm qhov tsis zoo) yog qhov siab tshaj plaws, ib nrab ntawm ob qhov nyob ib sab nodes.

Ib sab saum toj no, qhov node thiab hom hauv vibration yog dab tsi? Hom kev vibration yog thaum lub kaw lus tau txais kev zoo siab ntawm nws lub ntuj zaus. Tam sim no, lub hom zoo sib txawv rau txhua tus hom . Thiab ntawm qee qhov hom , muaj cov ntsiab lus ntawm qhov system uas tsis txav mus. Lawv kho. Cov ntsiab lus no hu ua nodes.

Kuj nug, muaj pes tsawg cov nodes nyob hauv ib nthwv dej sawv?

Qhov no sawv nthwv dej yog hu ua lub hauv paus zaus, nrog L = λ 2 L = dfrac{lambda}{2} L = 2λ?L, sib npaug, pib feem, lambda, muab faib los ntawm, 2, kawg feem, thiab muaj ob nodes thiab ib tug antinode.

Dab tsi ntawm nthwv dej yog resonance?

Resonant Lub Teeb Zaus nthwv dej los ntawm kev vibration ntawm charged hais. Cov khoom, cov khoom them nqi, thiab cov tshuab tshuab feem ntau muaj qee zaus uas lawv nyiam vibrate. Qhov no yog hu ua lawv suab nrov zaus, los yog lawv tej zaus. Qee yam khoom muaj ob lossis ntau dua suab nrov zaus.

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