Video: Lub teeb raws li 10th yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
CBSE Class 10 Physics, Teeb - Reflection thiab RefracctionDownload tam sim no. Teeb yog ib daim ntawv ntawm lub zog uas ua rau peb qhov kev xav ntawm qhov pom. Kev xav ntawm teeb yog lub phenomenon ntawm bouncing rov qab teeb nyob rau tib qhov nruab nrab ntawm kev tawm tsam qhov chaw ntawm txhua yam khoom.
Nyob rau hauv no txoj kev, dab tsi yog cov yam ntxwv ntawm lub teeb Class 10?
Reflecting nto yog nkhaus sab hauv. Reflecting nto yog nkhaus sab nraud.
Cov ntaub ntawv kawm thiab cov ntawv sau ntawm Ch 10 Lub teeb - Kev xav Chav kawm 10th Kev tshawb fawb.
| Duab tiag | Duab Virtual |
|---|---|
| Tsim thaum lub teeb rays tiag tiag ntsib. | Tsim thaum lub teeb pom kev zoo sib ntsib. |
| Yuav tau ntawm qhov screen. | Yuav tsis tau ntawm qhov screen. |
| Rov qab | Erect |
Tsis tas li ntawd, daim iav Class 10 yog dab tsi? Daim iav yog ib yam khoom ci polished ( iav ) uas qhia txog feem ntau ntawm cov rays ntawm lub teeb ntog rau nws. Ib sab ntawm iav yog polished nrog cov khoom tsim nyog los ua rau sab nraud reflective.
Ntawm no, lub teeb reflection thiab refraction yog dab tsi?
Reflection thiab refraction . Teeb rays hloov cov kev taw qhia thaum lawv xav txog ntawm ib tug nto, txav los ntawm ib tug pob tshab nruab nrab mus rau lwm yam, los yog mus los ntawm ib tug nruab nrab uas nws muaj pes tsawg leeg yog tsis tu ncua hloov. Txoj cai ntawm xav txog tuaj yeem siv los nkag siab cov duab tsim los ntawm lub dav hlau thiab cov iav nkhaus.
Dab tsi yog 7 lub zog ntawm lub teeb?
Lub yoj qauv ntawm teeb yog illustrated los ntawm khoom ntawm kev xav, refraction, diffraction, cuam tshuam, thiab polarization.
Pom zoo:
Lub teeb sib tham txog tej yam ntuj tso thiab manmade qhov chaw ntawm lub teeb yog dab tsi?
Tej qhov chaw ntawm lub teeb muaj xws li lub hnub, hnub qub, hluav taws, thiab hluav taws xob nyob rau hauv cua daj cua dub. Tseem muaj qee cov tsiaj thiab nroj tsuag uas tuaj yeem tsim lawv tus kheej lub teeb, xws li fireflies, jellyfish, thiab nceb. Qhov no hu ua bioluminescence. Artificial light yog tsim los ntawm tib neeg
Dab tsi yog qhov txawv ntawm wavelength ntawm lub teeb liab thiab lub teeb violet?
Violet lub teeb yog hluav taws xob hluav taws xob hluav taws xob nrog wavelengths ntawm 410 nanometers thiab lub teeb liab muaj awavelength ntawm 680 nanometers. Qhov ntau ntawm wavelengths (400 - 700 nm) ntawm lub teeb pom kev yog nyob nruab nrab ntawm lub electromagnetic spectrum (Fig.1)
Qhov txawv ntawm lub teeb dawb thiab lub teeb dub yog dab tsi?
Dub tsuas yog qhov tsis muaj lub teeb, vim tias nws tsis nyob los yog vim nws tau nqus thiab tsis pom. Yog li hu ua 'dub teeb' tsuas yog ultra-violetlight, uas yog lub teeb zoo tib yam (electromagneticradiation) uas yog siab tshaj qhov pom spectrum. Lub teeb twg hu ua lub teeb dawb?
Dab tsi yog qhov teeb meem ntawm lub teeb nyob rau hauv lub ntuj hmo ntuj hu ua?
Gegenschein, tseem hu ua Counterglow, oval thaj ntawm faint luminosity raws nraim rau lub hnub nyob rau hauv lub hmo ntuj. Lub thaj ntawm lub teeb yog li faint nws tuaj yeem pom tsuas yog thaum tsis muaj lub hli, nyob deb ntawm lub nroog teeb, thiab nrog lub qhov muag yoog rau qhov tsaus ntuj
Dab tsi yog qhov kev faib tawm ntawm cov teeb meem raws li muaj pes tsawg leeg?
Cov teeb meem tuaj yeem muab faib ua ob pawg dav: cov tshuaj ntshiab thiab cov khoom sib tov. Cov khoom ntshiab yog ib daim ntawv ntawm cov teeb meem uas muaj qhov sib xyaw ua ke thiab cov khoom uas tsis tu ncua thoob plaws hauv cov qauv. Kev sib xyaw ua ke yog kev sib xyaw ua ke ntawm ob lossis ntau lub ntsiab lus thiab / lossis cov khoom sib txuas