Unit 8: Light by Marily Garcia https://padlet.com/garcimar344/uwuj0bk8wce Electromagnetic radiation of any wavelength, whether visible or not. The study of light, known as optics, is an important research area in modern physics. en-us 2018-05-08 14:19:35 UTC 2025-10-05 16:25:30 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Lightdecrease.png 41) Give three examples of electromagnetic radiation.. garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/258924251 2018-05-08 14:24:34 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/258924251 42) When light enters a piece of glass from air, its speed... garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/258929782 2018-05-08 14:33:27 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/258929782 43) If diamond has an index of refraction of 2.51, what is the speed through this object? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/258931649 Hint: V = C/N]]> 2018-05-08 14:36:32 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/258931649 44) A ray of light in air is incident on a glass boundary at an angle of 40° with the normal. If the index of refraction of the glass is 1.65, what is the angle of refraction in the glass? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/258932808 Hint: N1 * Sin1 = N2 * Sin2]]> 2018-05-08 14:38:51 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/258932808 45) A light ray in air is incident on a glass boundary at an angle of 30° and is refracted in the glass at 20° with the normal. What is the index of refraction of the glass? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/258936914 Hint: N1 * Sin1 = N2 * Sin2]]> 2018-05-08 14:46:44 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/258936914 46) If total internal reflection occurs at a glass to air surface: is there a refraction and reflection angle? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/258938695 Hint: ]]> 2018-05-08 14:50:23 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/258938695 47) If you stand 0.75 meters in front of a plane mirror, what is the apparent distance between you and your image? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/259492417 2018-05-10 01:16:50 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/259492417 48) A concave mirror with a focal length of 12 cm creates a real image 30 cm away on its principal axis; the corresponding object is located how far from the mirror? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/259493143 Hint: 1/F = 1/Di + 1/Do]]> 2018-05-10 01:22:18 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/259493143 49) What is the focal length of a mirror whose radius of curvature is 22 cm? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/259493598 2018-05-10 01:25:44 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/259493598 50) A candle was placed 36 cm from a converging lens. The image of the candle was inverted and appeared 20 cm from the lens. What is the focal length of the lens? garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/259494140 Hint: 1/F = 1/Di + 1/Do]]> 2018-05-10 01:29:46 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/259494140 Answers: garcimar344 https://padlet.com/garcimar344/uwuj0bk8wce/wish/259495450 41. X- Rays, Light, Infrared 
42. Decreases
43. 11.95 m/s
44. 22.8°
45. N2 = 1.47
46. No refraction angle, only reflection angle. 
47. 0.75(2) = 1.5
48. Do = 20
49. 22/2 = 11
50. F = 13]]> 2018-05-10 01:39:05 UTC https://padlet.com/garcimar344/uwuj0bk8wce/wish/259495450