Dab tsi yog diffraction ntawm nthwv dej?
Dab tsi yog diffraction ntawm nthwv dej?

Video: Dab tsi yog diffraction ntawm nthwv dej?

Video: Dab tsi yog diffraction ntawm nthwv dej?
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Diffraction hais txog ntau yam phenomena uas tshwm sim thaum a yoj ntsib ib qho kev khuam siab los yog ib txoj hlua. Nws yog txhais raws li kev khoov ntawm nthwv dej nyob ib ncig ntawm lub ces kaum ntawm anobstacle los yog los ntawm ib tug aperture mus rau hauv lub cheeb tsam ntawm geometrical ntxoov ntxoo ntawm obstacle / aperture.

Ib yam li ntawd, tib neeg nug, dab tsi ua rau nthwv dej diffraction?

Diffraction pom ntawm lub teeb tsis muaj zog tab sis tsuas yog thaum cov nthwv dej ntsib teeb meem nrog cov wavelengths me me (xws li cov khoom raug tshem tawm hauv peb cov huab cua). Reffraction yog ib txwm nrog lub wavelength thiab ceev hloov. Diffraction yog qhov khoov ntawm nthwv dej ncig obstacles andopenings.

Ib yam li ntawd, wavelength cuam tshuam li cas diffraction? Hauv luv, lub kaum sab xis ntawm kev txawv txav yog ncaj qha rau qhov loj ntawm lub wavelength . Li no lub teeb liab (ntev wavelength ) disfracts ntau tshaj lub teeb xiav (luv wavelength ). Thiab xov tooj cua nthwv dej (tseem ntev wavelength ) cuam tshuam ntau tshaj X-rays (tsawg tiag wavelengths ).

Ib yam li ntawd ib tug yuav nug, dab tsi yog piv txwv ntawm diffraction?

Cov yeeb yuj tshaj plaws piv txwv ntawm diffraction cov uas muaj qhov kaj; rau piv txwv , qhov ze spacedtracks ntawm CD los yog DVD ua raws li ib tug kev txawv txav grating los tsim cov qauv zaj sawv uas peb pom thaum saib adisk.

Dab tsi yog cov xwm txheej rau diffraction?

Diffraction yog ib qho phenomenon uas tshwm sim thaum lub teeb los hla ib yam khoom thiab yog obstructed. Qhov tseem ceeb mob rau diffraction tshwm sim yog tias lub wavelength ntawm lub teeb yuav tsum tau muab piv rau qhov loj ntawm cov khoom. Nws kuj tseem tshwm sim yog tias qhov loj ntawm qhov khoom tsawg dua lub wavelength ntawm lub teeb.

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