- Ve Als Ces Ure Guyen Section Refraction Of Light Date 1 Describe How Light Bends When It Travels From One Medium To An 1 (136.38 KiB) Viewed 35 times
- Ve Als Ces Ure Guyen Section Refraction Of Light Date 1 Describe How Light Bends When It Travels From One Medium To An 2 (94.5 KiB) Viewed 35 times
VE: ALS CES URE guyen Section REFRACTION OF LIGHT Date 1. Describe how light bends when it travels from one medium to another. 2. Measure the index of refraction of different materials Bending Light 1.1.20 PhET simulation Bending Light 1.1.20 PhET simulation: https://phet.colorado.edu/sims/html/bending- light/latest/bending-light en.html 1. Set the following parameters: Medium I Medium 2 Laser View Air Water Ray Enabled Normal Line Angles Enabled 2. Turn on the laser and using the protractor measure the angle of incidence and the angle of refraction. 3. Increase the angle of incidence by moving the laser away from the normal. Observe what happens to the angle of refraction as the angle of incidence increases. 4. Using the protractor, measure the angle of refraction at different angles of incidence, 3° <i≤ 40. Repeat the procedure for light travelling from air to glass. Angle of Direction of Propagation of Angle of Refraction, Incidence, i sin i sin r Light (degrees) r (degrees) 7 0.17 Da 15° 0.34 Air to Water 0.5 0.35 0.64 0.47 0.17 0.087 20 0.34 0.22 Air to Glass 30 13° 19 24 0.5 6.32 40 10.64 6.4 5. Calculate refractive index of refractive medium 'nr 'using the Snell's law equation form the formula sheet (Honors Only) n₁ Sin₁ = n₂ Sin O₂. 1 x Sin (10) = n₂ Sin 177 112. 1 x Sin (10) = 1.42mls Sin (71 Sudish Nair tista, Manila Science High School 10 20 30 40 10 000 210 28⁰ والد جامع 5 0.12 0.25
Name: CONCLUSION(S) Section Date Guide Questions ● The angle of What happens to the angle of refraction as the angle of incidence increases? refraction is increased How does the calculated index of refraction of water compare with the index of refraction given in simulation? (Honors Only) ● In which material, water or glass, does light bend more? How does the amount of bending depend on the indices of refraction of the two media (air-to-water, air-to- glass)? 1. Define normal in your own words? 2. What is refraction? How is it different form reflection? 3. When the light moves from a less dense medium to more dense medium it bends (towards / away) from the normal. 4. When the light bends form more dense medium to less dense medium it bends (towards / away) from the normal. (less/ more) dense medium 5. Light slows down as it moves from to (less/ more) dense medium.