Fill in the blanks to complete the statements. - Mr Simnett



Optics Review Practice ProblemsFill in the blanks to complete the statements.4.List all of the possible characteristics of an image:a.Location: The distance from the mirror can be _______________ than, _______________ than, orthe _______________ as the distance from the object to the mirror. b.Orientation: The image can be either ____________________ or ____________________.c.Size: The image can be _______________ than, _______________ than, or the _______________ size as the object.d.Type: The image can be either ____________________ or ____________________.5.Fill in the blanks to complete these definitions for reflections in a plane mirror.a.The object distance is the distance between the _________________ and the _________________.b.The image distance is the distance between the _________________ and the _________________.6.The three rays from a point on an object that are particularly useful for locating the image of the point area.the ray that starts ____________________ to the principal axis of the mirror, reflects, and thenpasses through the _______________ _______________ of the mirrorb.the ray that passes through the _______________ _______________ and then _______________ from the mirror, travelling parallel to the ________________________ _______________c.the ray that travels straight from the object to the __________________ of __________________of the mirror7.a.A positive image distance indicates that the image is ________________________.b.A negative image distance indicates that the image is ________________________.8.a.In a real image, the rays actually _______________, and the image would _______________ on a?screen placed at the location of the image.b.In a virtual image, the rays do _______________ actually meet, and _______________ image will appear on a screen placed at the location of the image.9.When the centre of curvature of a concave mirror is between an object and the mirror, the image ofthe object is __________________, __________________, __________________ than the object,and located __________________ to the mirror than the object.10.A concave mirror curves ____________ the object, while a convex mirror curves ____________ from the object. The focal point and the centre of curvature of a concave mirror are in ____________ of the mirror, while the focal point and the centre of curvature of a convex mirror are ____________ the mirror.11.The value of the focal length of a convex mirror is negative because the focal point is ____________ _____ __________________.12.An object in front of a concave mirror can be between the mirror and the ___________ __________,between the focal point and the centre of _______________________, or beyond the ___________of ______________________. However, a convex mirror is always between the _____________ andboth the centre of curvature and focal point.13.Convex mirrors are often used as security mirrors in convenience stores. These mirrors reflect an image of a ________________ ______________.14.Images in spherical mirrors—either convex or concave—are distorted because of ______________________________.Complete questions 15-27. Use full sentences where appropriate and show all work.15.a.What is the range of wavelengths for visible light?b.Is any other part of the electromagnetic spectrum visible to the human eye? 16.For each of the following wavelengths, list the corresponding type of electromagnetic radiation.a.10 m b.1 mm c.10–9 m d.less than 10–12 m 18.a.What is the measure of the angle of incidence of an incident ray that is normal to a mirror?b.What is the measure of the angle of reflection for this ray?c.Is there any other angle of incidence for which the incident ray and the reflected ray will coincide?19.Draw two rays to determine the location of the image of point A in this diagram.20.a.Locate the image of the triangle in this diagram. b.List the four characteristics of this image.c.How many rays do you need to draw to determine the image of the whole triangle?d.How many rays would you need to draw to determine the complete image of a rectangle?Location: Orientation: Size: Type: 21.Mark and label the focal point and the centre of curvature of the mirror in this diagram. 22.a.What is the orientation of the image when an object is located between a concave mirror and itsfocal point?b.What is the orientation of the image when an object is located between the focal point and the centre of curvature of a concave mirror?c.Is it possible for the image to be upright when an object is 30 cm away from a concave mirror with a focal length of 25 cm? Explain your reasoning.23.a.Label the diagram below with the following dimensions: f = 5 cm, do = 4 cm, and ho = 3 cm. b.Draw a ray diagram to locate the image. c. Determine the scale of the diagram and measure the image height and location. 24.A concave mirror has a focal length of 5 cm. An object 2 cm high is 11 cm from the mirror. Complete the ray diagram and measure the image height and image distance.25.Draw a ray diagram for the convex mirror in this diagram.26.Some vehicles have a two-part side mirror that has a plane mirror with a smaller convex mirror on top of it.a.What is the advantage of the plane mirror?b.What is the advantage of the convex mirror?27.A concave mirror has a focal length of –5 cm. An object with a height of 4 cm is 3 cm from the plete the ray diagram below, and use it to measure the image height and distance.1. Calculate the refractive index for a substance if the speed of light in that medium is:a) 2.6 X 108 m/s (n=1.15 )b) 1.2 X 108 m/s (n= 2.5)c) 0.48c(n = 2.08)2. Calculate the angle of refraction for light as it passes from benzene (n = 1.5) to each of the following media, at an angle of incidence of 45°:a) Ice (n = 1.30) (R=55)b) Water (n = 1.33)(R=53)c) Flint glass (n = 1.91)(R=34)3. Calculate the angle of incidence for an angle of refraction of 25° for:a) Zircon (n = 1.90) to water (n=1.33).(I=17)b) Water (n=1.33) to ice (n=1.30).(I=24)c) Diamond (n = 2.42) to flint glass (n=1.91).(I=19)4. Calculate the critical angle for: (see above for index of refractions!)a) Zircon to water. (CRITICAL=44)b) Diamond to ice.(CRITICAL=32)c) water to ice.(CRITICAL=78)5. A ray of light passes from kerosene to glass (n=1.91). The angle of incidence of the light is 45.2o and index of refraction for kerosene is 1.08. Calculate the angle of refraction in the glass. (41o) 6. A ray of light passes from air into a glass prism at an angle of incidence of 35o. If the angle of refraction in the glass is 23.7o, what is the speed of the light in the glass? (2.1 x 108 m/s) 7. The critical angle for diamond is 24o. Determine the index of refraction of diamond. (assume it goes from diamond to air) (2.46) 8. Describe an application of total internal reflection used in the communications industry. 9. Provide a brief explanation for the following concepts that relate to refraction. Make sure to include a diagram of your own or from the internet for each concept. a) Miragesb) Apparent depthc) The flattened sund) The rainbow ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download