Yuav ua li cas koj xam wavelength ntawm MHz?
Yuav ua li cas koj xam wavelength ntawm MHz?

Video: Yuav ua li cas koj xam wavelength ntawm MHz?

Video: Yuav ua li cas koj xam wavelength ntawm MHz?
Video: Tsis Paub Yuav Ua Li Cas - maim lis 2024, Kaum ib hlis
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Los xaus, los txiav txim qhov wavelength ntawm aradio yoj, koj siv qhov ceev thiab faib nws los ntawm zaus . Cov xov tooj cua yoj zaus yog li 88 ~ 108 MHz . Cov wavelength yog li no feem ntau hais txog 3.41 × 109 ~ 2.78 × 109 nm. Vam tias qhov no yuav pab tau thiab ua tsaug rau koj cov lus nug.

Ib yam li ntawd, tib neeg nug, ua li cas koj xam wavelength thaum muab zaus?

Yog koj xav tau xam tus wavelength ntawm a nthwv dej, ces txhua yam koj yuav tsum tau ua yog ntsaws lub nthwv dej nrawm thiab nthwv dej zaus rau hauv kev sib npaug . Faib ceev los ntawm zaus muab rau koj wavelength . Piv txwv li: Findthe wavelength ntawm ib nthwv dej taug kev ntawm 20 m / s ntawm a zaus ua 5 Hz.

Ib yam li ntawd, lub wavelength ntawm 100 MHz FM xov tooj cua yog dab tsi? High zaus (HF): Ntau zaus ntawm 3 MHz rau 30 MHz , li no wavelengths ua 10m 100 m. Mediumfrequency (MF): Ntau zaus ntawm 300 kHz txog 3 MHz , li no wavelengths ntawm 100m mus rau 1 km. Cov no tseem hu ua hectometric nthwv dej (hectometer = 100 m).

Tsis tas li ntawd, lub wavelength ntawm 92.9 MHz xov tooj cua yog dab tsi?

Teb thiab piav qhia: Lub wavelength ntawm 92.9 MHz xov tooj cua yoj yog 3,23m.

Dab tsi yog tus qauv rau wavelength?

Cov qauv wavelength . Lub wavelength yog sawv cev nrog Greek tsab ntawv lambda: λ. Nws yog sib npaug rau qhov nrawm ntawm nthwv dej, muab faib los ntawm qhov zaus.

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