Ifa
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ifa tuquun Wikshinarii irraa hiika isaa ilaali. |
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Ifa, yookan ifa mul'atu, kuniin raadiyeeshinii elektiroomaagnineetii kan dheerinni dambalii isaa naannnnoo 400–700 nm ta'ee fi ija namaan argamuu danda'u qabuudha. Saayinsii kessatti jechii ifa jedhamu ifa ija namaan mul'atuu fi hin mul'anne walitti qabaan agarsiis. Kunis elektiroomaagneetiik ispeektiram jedhama. Ifni of kessaa paartikiloota xiqqoo kan foton jedhaman of keessaa qaba.
Waanni sadeen ifti ittiin beekkamu:
- Intensity, yokaan brightness;
- Frequency yokaan wavelength fi;
- Polarization yokaan direction of the wave oscillation.
Ifni amala dambalii fi paartikilii agarsisuu ni danda'a. Amalli isaa kuni ammoo lakkummaa dambalii-paartikilii jedhama. Qo'annoon ifaa optiikisii yoo jedhamu qo'anno fiiziksii ammayyaa kessatti barbachisumaa guddaa qaba.