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asurement of using the Sell remot Dispersion spectrum from a prism and me refracted blue surface normal refracted online acted on 82 Light Source cope) a, incidenta: Figure 2 Place a sheet of white paper on lab table and place light source (OS-8517) on the slit mask in the front of light source until only one light ray is shining. the shine surface of the rhombus downward to the table. The triangular end of the is used as a prism in this experiment (Fig. 2). Rotate the rhombus until the angle (0) of the emerging ray is as large as possible and the ray separates into colors. Record what colors are seen, in what order they are and which color is rendel at the largest angle. Trace the outline of the rhombus by drawing straight lines along its bottom edges, mark four points 3. anda as shown in Fig. 2. Remove the rhombus. Draw four straight lines through points (ai, a:), (3, a.). (32.a), and me surface normal (Fig. 2). 6. Measure the incident angle 0, the refracted angles 2 ore) and (b) using a pro ke the angle measurements easier you may extend the four straight lines data in Table L. To make the angle measurements easier you may w) and (b) using a protractor. Record the Table 1. Data from measurement #1 refracted angle 02 incident angle orange line blue line 40° index of refraction orange line blue line 10.68 0165

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Answer 1

و ور الموالين لما Quey Yes, Brewster's angle occur at interface from air to glass because when light comes in al Brewster angle, reflected ware has Electric field perpendicular to wave because este electrons don't oscillate along that direction, OR Brewster angle unpolarized 2 say u represent Electric field day Vectos perpendicular to direction Refracted 85 of light incident at angle greater or less than Brewstee angle, reflected say will be partly bolarized and hence intensity of particular polarized ware decreases o greater or less than gol at Brewsteraugle when person looks deep into water Partly Polarized Reflected Зе it appears to be less deep Apparent depth = Real depth Refractive inder 1.33 Apparent depth = 2 = 1,50m Height of pool appear to be resom A Refractice index is calculated by how much light bends in different material - simo

lens is incidence angle r refracted angle By using lens femels teu-10/2 - 72 ) R,, y Raduis of lens f focal length using Brewster angle formule TanoB = Gr n ni refract 10 ni refractive index of air = ₂ refracture index of Tom OB =h2 OBA Brewsterauge any material