Activity on Light and Optics Instructions: For multiple choice part, write the correct answer on the space provided before each number. For problem solving part, use additional sheets of paper to show your solutions and round off your answers to nearest hundredths. __D__1. Indicate the false statement. As a wave travels from one medium to another, A. its direction always changes B. its speed always changesC. its wavelength always changes D. its frequency always changes 2. An underwater scuba diver sees the Sun at an apparent angle of 45.0° above the horizontal. What is the actual elevation angle of the Sun above the horizontal? __A___3. A light is travelling from glass to water. Which statement is true? A. the angle of incidence is greater than the angle of refraction B. the light bends away from the normal C. the light travels faster in glass D. none of the above 4. The index of refraction for violet light in silica flint glass is 1.66 and that for red light is 1.62. What is the angular spread of visible light passing through a prism of apex angle 60.0° if the angle of incidence is 50.0°? __C___5. What type of reflection is occurs when light strikes a highly polished surface? A. perfect reflection B. Lambertian reflection C. specular reflection D. diffuse reflection 6. The critical angle (for total internal reflection) for a certain liquid-air surface is 47.7 degrees. What is the index of refraction of the liquid? __A___7. The band of colors produced when light is dispersed by a prism is called A. spectrum B. rainbow C. dispersion D. continuum 8. Light in air approaches the boundary of oil at an angle of 36.1 degrees with respect to the normal. The light travels at a speed of 2.27 x 108 m/s through the oil. Determine the angle of refraction.
