Set 2 Refraction — Seaweed is equivalent to the product of the 11. A laser beam is directed at the surface absolute index of refraction of water and of a smooth, calm pond as represented the speed of light in water? in the diagram below. Which organisms wavelength of light in a vacuum could be illuminated by the laser light? frequency of light in water Normal sine of the angle of incidence 11 of light in a vacuum the bird and the fish 14 the bird and the seaweed the crab and the seaweed the crab and the fish 15. What is the speed of light (/"= 5.09 x 1014 Hz) in flint glass? 1.81 x 108m/s 1.97 x 108m/s 3.00 x 108m/s 4.98 x 108m/s 15 Bird index of refraction of the material? 12. What happens to the frequency and the (1)1.20 (3)7.50 of an electromagnetic wave as it (2)2.50 (4)0.833 13 passes from air into glass? The frequency decreases and the speed increases. Medium Y 16. The diagram below represents a light ray The frequency increases and the traveling from air to Lucite to medium Y speed decreases. and back into air. The frequency remains the same and Light travels slowest in the speed increases. The frequency remains the same and air, only the speed decreases. 12 Lucite, only medium only Y, air, Lucite, and medium Y 13. The speed of light in a material is 2.50 x 108 16 meters per second. What is the absolute Paqe 84 Waves &«*,»*• 2010 «* Topical Review Book Company
Set 2 — Refraction Seaweed 11. A laser beam is directed at the surface of a smooth, calm pond as represented in the diagram below. Which organisms could be illuminated by the laser light? Normal 11 the bird and the fish the bird and the seaweed the crab and the seaweed the crab and the fish Bird is equivalent to the product of the absolute index of refraction of water and the speed of light in water? wavelength of light in a vacuum frequency of light in water sine of the angle of incidence of light in a vacuum 14 15. What is the speed of light (/"= 5.09 x 1014 Hz) in flint glass? 1.81 x 108m/s 1.97 x 108m/s 3.00 x 108m/s 4.98 x 108m/s 15 12. What happens to the frequency and the of an electromagnetic wave as it passes from air into glass? The frequency decreases and the speed increases. The frequency increases and the speed decreases. The frequency remains the same and the speed increases. The frequency remains the same and the speed decreases. 12 13. The speed of light in a material is 2.50 x 108 meters per second. What is the absolute index of refraction of the material? (1)1.20 (3)7.50 (2)2.50 (4)0.833 13 Medium Y 16. The diagram below represents a light ray traveling from air to Lucite to medium Y and back into air. Light travels slowest in air, only Lucite, only medium Y, only air, Lucite, and medium Y 16 Paqe 84 Waves &«*,»*• 2010 «* Topical Review Book Company
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