Red light yog khoov tsawg kawg. Qhov kev sib cais ntawm lub teeb dawb rau hauv nws cov xim yog lub npe hu ua dispersion ntawm lub teeb.
Yuav ua li cas Ray feem ntau deviated los ntawm prism?
Vim lub wavelength ntawm violet light yog qhov tsawg tshaj plaws, yog li qhov sib txawv siab tshaj plaws yuav tshwm sim rau lub teeb violet.
Dab tsi yog qhov sib txawv tsawg tshaj plaws?
Kuj, xim violet muaj qhov tsawg tshaj plaws wavelength. Yog li ntawd thaum nws mus los ntawm ib qho nruab nrab mus rau lwm qhov, ces nws muaj qhov siab tshaj plaws ntawm lub kaum sab xis ntawm qhov xwm txheej thiab cov xim violet yuav deviate tshaj plaws. Tab sis cov xim liab muaj qhov siab tshaj plaws wavelength yog li nws yuav deviate qhov tsawg tshaj plaws.
Hnub twg tsawg tshaj qhov sib txawv ntawm prism?
Lub hnub ci hluav taws xob sib cais (lossis tawg) rau hauv nws cov xim sib xws (piv txwv li xya xim) Yog li, cov dej poob qis hauv huab cua coj zoo li iav prism. Lub xim liab deviates qhov tsawg tshaj plaws thiab cov xim violet deviates tshaj plaws.
Lub teeb twg yog qhov sib txawv tsawg tshaj plaws?
xim liab yog deviated tsawg tshaj plaws los ntawm prism nyob rau hauv lub spectrum ntawm lub teeb dawb.
