Rau qhov sib txawv ntawm cov nthwv dej sib txawv yog qhov sib npaug?
Rau qhov sib txawv ntawm cov nthwv dej sib txawv yog qhov sib npaug?

Video: Rau qhov sib txawv ntawm cov nthwv dej sib txawv yog qhov sib npaug?

Video: Rau qhov sib txawv ntawm cov nthwv dej sib txawv yog qhov sib npaug?
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Kev siv zog yog proportional rau lub square ntawm zaus thiab rau square ntawm lub amplitude. Yog tias nthwv dej tuaj yeem nthuav tawm peb-dimensionally los ntawm nws qhov chaw, thiab qhov nruab nrab zoo ib yam, lub nthwv dej yog spherical.

Yuav siv li cas ntawm nthwv dej proportional rau?

Raws li txhais hauv physics, qhov kev siv ntawm nthwv dej yog proportional rau lub square ntawm nws amplitude (A2 ∝ I) Yog li ntawd txhais tau hais tias yog peb xav ua raws li cov nyhuv ntawm lub suab nyob deb li deb, (1/4 qhov kev siv), peb yuav tsum tau muab cov amplitude los ntawm ib nrab.

Puas yog qhov sib npaug sib npaug rau zaus squared?

Tam sim no thaum tham txog lub suab nthwv dej lub suab ntawm lub suab nrov (nrov), nws yog proportional rau qhov siv ntawm qhov chaw. Yog tias siv nrawmntawm nthwv dej yog proportional rau zaus, vim li cas ho tsis suab theem, feem ntau, nyob ntawm zaus.

Yuav siv li cas ncaj qha proportional rau amplitude squared?

Qhov tseeb, nthwv dej lub zog yog ncaj qha proportional rau nws amplitude squared vim W ∝ Fx=kx2 … siv tau rau txhua lub zog hauv kev thauj mus los, suav nrog cov uas nqa los ntawm nthwv dej. Chav tsev SI rau kev siv zog yog watts ib square meter (W/m2).

Kev siv zog ntawm nthwv dej zuj zus yog dab tsi?

Kev siv zog ntawm nthwv dej nce qib yog proportional rau square ntawm lub amplitude ntawm nthwv dej . Nws kuj yog proportional rau lub square ntawm zaus. … Qhov hnyav ntawm nthwv dej Q yog I0.

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