Question

Dispersion of light?

Answer 1

The light splits into seven colours when it passes through a prism. The splitting of light into seven colours is called dispersion. The band of seven colours obtained of dispersion is known as spectrum. Thus, a rainbow is formed due to dispersion of sunlight from water droplets which behave as small prism and sky behaves as a screen.

Answer 2

Dispersion of light

$\setlength{\unitlength}{2mm}\begin{picture}(0,0)\linethickness{0.35mm}\qbezier(0,0)(0,0)(10,16)\qbezier(0,0)(0,0)(20,0)\qbezier(20,0)(20,0)(10,16)\put(9.4,17){\bf A}\qbezier(25,0)(25,0)(15,16)\qbezier(25,0)(25,0)(35,16)\qbezier(15,16)(16,16)(35,16)\qbezier( - 8, - 3)( - 8, - 3)( - 11,7)\linethickness{0.215mm}\qbezier(8.7,14)(10,12.5)(11,14)\qbezier(23.8,1.7)(24.7,3.5)(26,2)\qbezier(45,3)(45, 3)(40,17.5)\qbezier( - 12, 3)( - 12, 3)(5.8,9)\qbezier(5.8,8.9)(5.8,8.9)(14.2,8.9)\qbezier(5.8,8.9)(5.8,8.9)(21,5.8)\qbezier(14.2,8.9)(14.2,8.9)(20,8)\qbezier(20,8)(20,8)(33,13)\qbezier(21,5.8)(21,5.8)(33,13)\qbezier(33,13)(33,13)(42,15.9)\put(24.5, - 2.5){\bf A}\put( - 4,9){\sf\footnotesize White light}\put(34,11.5){\sf\footnotesize White light}\put(38,18.5){\sf\footnotesize Screen}\thicklines\put( - 2,6.4){\vector( 3, 1){2}}\put(11,8.9){\vector(1,0){0}}\put(12,7.8){\vector( 3, - 1){0}}\put(17.5,8.5){\vector( 3, - 1){0}}\put(18,6.5){\vector(3, - 1){0}}\put(26,8.9){\vector( 3,1){0}}\put(26,10.4){\vector( 3,1){0}}\put(38,14.5){\vector( 3, 2){0}}\put(9.4, - 2){\bf P_1 }\put(25, 17){\bf P_2 }}\put(11.5, 5.9){\sf\footnotesize V}\put(17.5, 4.5){\sf\footnotesize V}\put(26, 7){\sf\footnotesize V}\put(9.4,9.8){\sf\footnotesize R}\put(17,9.2){\sf\footnotesize R}\put(25,10.9){\sf\footnotesize R}\end{picture}$

Note : Kindly , see the answer through web