Cov txheej txheem:
- Puas muaj qhov sib txawv ntawm kev xa khoom thiab xa tawm?
- Qhov chaw xa khoom yog dab tsi?
- Puas xa ib yam li kev xa khoom?
- txhais tau li cas ntawm kev xa tawm?
Video: Qhov sib txawv ntawm kev xa khoom thiab xa khoom nyob qhov twg?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Qhov sib txawv tseem ceeb ntawm ob nqe lus yog hauv lawv cov ntawv "Despatch" muaj tsab ntawv "e," thaum "xa" muaj tsab ntawv "i." Qhov sib txawv ntawm kev sau ntawv tau tshwm sim hauv xyoo 1755 thaum phau ntawv txhais lus qhia txog daim ntawv "des." Txawm li cas los xij, ob qho kev hloov pauv tau txais los ntawm cov qauv Askiv.
Puas muaj qhov sib txawv ntawm kev xa khoom thiab xa tawm?
Nws yog ib yam rau peb, thaum peb muaj ob lo lus rau ib yam, kom ib tug txhais ib yam dab tsi txawv me ntsis ntawm lwm yam. Yog li dispatch dhau los ua lub ntsiab lus'ceev thiab lub zog' thiab despatch dhau los ua lus qhia lub ntsiab lus 'xa tawm nrog nrawm thiab lub zog'.
Qhov chaw xa khoom yog dab tsi?
Qhov chaw xa khoom: lub npe thiab chaw nyob ntawm cov chaw tuav lossis chaw tsim khoom uas cov khoom lag luam tuaj ntawm Ib chav tsev ntawm lub tuam txhab hauv cov khoom noj lossis khoom noj. … Qhov chaw xa khoom: lub npe thiab chaw nyob ntawm kev tuav lossis chaw tsim khoom uas cov khoom tuaj ntawm.
Puas xa ib yam li kev xa khoom?
As lub npe qhov txawv ntawm kev xa khoom thiab xa tawm
yog tias kev xa khoom yog kev xa khoom thaum xa tawm yog cov lus xa sai, raws li kev xa khoom, a Kev hais daws sai sai ntawm kev lag luam, lossis cov lus tseem ceeb xa los ntawm tus neeg sawv cev, lossis tub ceev xwm.
txhais tau li cas ntawm kev xa tawm?
1: xa tawm lossis tawm nrog nrawm lossis nrawm xa tsab ntawv xa lub tsheb thauj neeg mob mus rau qhov xwm txheej tshwj xeeb: xa tawm ntawm kev lag luam xa tus xa xov. 2a: tua nrog ceev efficiency xa tus mos lwj nrog ib tug txhaj. b obsolete: deprive.
Pom zoo:
Ntawm qhov sib npaug ntawm qhov sib npaug ntawm cov reactants) thiab cov khoom) yog qhov tas li?
Nyob rau hauv ib qho tshuaj sib npaug, cov tshuaj tiv thaiv rau pem hauv ntej thiab thim rov qab Cov tshuaj tiv thaiv rov qab yog ib qho reaction uas hloov dua siab tshiab ntawm reactants rau cov khoom thiab hloov cov khoom rau reactants tshwm sim ib txhij … Hauv qhov rov qab cov tshuaj tiv thaiv, hydrogen iodide decomposes rov qab rau hauv hydrogen thiab iodine.
Puas yog piv txwv ntawm qhov sib txawv ntawm qhov sib txawv ntawm cov khoom siv hluav taws xob?
Piv txwv rau cov khoom siv tsis ncaj band sib txawv yog silicon (Si), germanium (Ge), aluminium arsenide (AlAs) thiab gallium phosphide (GaP) . Yuav ua li cas piv txwv ntawm indirect band gap? Piv txwv ntawm cov ntaub ntawv ncaj qha muaj xws li amorphous silicon thiab qee cov khoom siv III-V xws li InAs thiab GaAs.
Rau cov roj zoo tagnrho uas qhov sib txawv yog qhov sib txawv ntawm qhov sib txawv?
Boyle txoj cai hais tias siab (P) thiab ntim (V) yog qhov sib npaug. Charles txoj cai hais tias ntim (V) thiab qhov kub thiab txias (T) ncaj qha proportional . Txoj cai roj twg yog qhov sib npaug sib npaug? Rau qhov loj ntawm cov roj zoo tagnrho khaws cia ntawm qhov kub thiab txias, siab thiab ntim yog qhov sib npaug.
Nyob rau hauv fraunhoffer qhov sib txawv ntawm qhov sib txawv wavefront yog?
Nyob rau hauv qhov sib txawv no qhov xwm txheej thiab qhov sib txawv yoj pem hauv ntej yog spherical lossis cylindrical (b) Fraunhoffer diffraction: Hauv fraunhoffer diffraction, lub teeb qhov chaw thiab qhov taw qhia kev soj ntsuam nyob ntawm qhov kev ncua deb ntawm lub teeb meem.
Nyob rau hauv ib qho kev tsis sib haum xeeb pn kev sib tshuam cov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
Nyob rau hauv qhov tsis ncaj ncees PN-kho qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog zero, vim tias sib npaug tab sis cov neeg nqa khoom hla hla kev sib tshuam . Thaum pn kev sib tshuam tsis ncaj ncees qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
