Yuav ua li cas wavelength muaj feem xyuam rau qhov ceev ntawm lub teeb nyob rau hauv ib tug nruab nrab?
Yuav ua li cas wavelength muaj feem xyuam rau qhov ceev ntawm lub teeb nyob rau hauv ib tug nruab nrab?

Video: Yuav ua li cas wavelength muaj feem xyuam rau qhov ceev ntawm lub teeb nyob rau hauv ib tug nruab nrab?

Video: Yuav ua li cas wavelength muaj feem xyuam rau qhov ceev ntawm lub teeb nyob rau hauv ib tug nruab nrab?
Video: Hi So - Yuav Hnav li Cas ( Nkauj tawm tshiab 2020 ) 2024, Kaum ib hlis
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Cov ceev ntawm lub teeb nyob rau hauv ib tug nruab nrab yog v = cn v = c n, qhov twg n yog nws qhov Performance index ntawm refraction. Qhov no txhais tau tias v = f λ ,qha l yog cov wavelength hauv a nruab nrab thiab tias λn = λn λ n = λ n, qhov twg λ yog wavelength hauv lub tshuab nqus tsev thiab n yog qhov nruab nrab index ntawm refraction.

Ib yam li ntawd, kev sib raug zoo ntawm wavelength thiab ceev ntawm lub teeb yog dab tsi?

Cov kev sib raug zoo ntawm qhov zaus (tus naj npawb ntawm nthwv dej crests uas dhau los ntawm qee qhov taw tes hauv lub sijhawm muab) thiab wavelength rau electromagnetic tsis yog txhais los ntawm cov mis, c = λ f, qhov twg c yog tus ceev ntawm lub teeb ,l ua wavelength hauv meters, thiab f sib npaug ntawm zaus hauv cycles ib ob.

Ib yam li ntawd, vim li cas qhov ceev ntawm lub teeb hloov hauv cov nruab nrab sib txawv? Ceev ntawm lub teeb tsis hloov , nws yuav tsum tau mus ntau dua nyob rau hauv ib nruab nrab tshaj hauv lub tshuab nqus tsev, Thaum teeb yog hla a nruab nrab , cov electrons nyob rau hauv lub nruab nrab absorbs lub zog los ntawm lub teeb thiab tau zoo siab thiab tso lawv rov qab. Yog li teeb interacts nrog particle nyob rau hauv lub nruab nrab , uas ua rau qeeb.

Kuj paub, puas wavelength ntawm lub teeb nyob ntawm nruab nrab?

Wavelength nyob ntawm ntawm nruab nrab (piv txwv li, lub tshuab nqus tsev, huab cua, lossis dej) uas nthwv dej hla. Piv txwv ntawm nthwv dej yog suab nthwv dej, teeb , dej nthwv dej thiab lub sijhawm hluav taws xob teeb liab hauv ib tus neeg xyuas pib.

Kev sib raug zoo ntawm kev ceev thiab zaus yog dab tsi?

Saib, zaus yog qhov ntsuas kom muaj nuj nqis rau ceev . Ntau zaus yog txhais raws li tus naj npawb ntawm cov voj voog ua tiav ib ob los ntawm ib qho khoom tig uas yog rotor nyob rau hauv lub synchronous alternator. Yog ceev nce, tus naj npawb ntawm cov voj voog them los ntawm rotor ib thib ob nce thiab yog li nce zaus.

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