Optics Chpt 11&12 Review Answers PDF

Name __________________________ SNC2P Light And Mirror Review (Study Guide) Chapter 11 Light Study Guide List the types of energy in the Rdio Wave, Microwave, infrared, visible light, UV light, X-ray and electromagnetic...

Name __________________________ SNC2P Light And Mirror Review (Study Guide) Chapter 11 Light Study Guide List the types of energy in the Rdio Wave, Microwave, infrared, visible light, UV light, X-ray and electromagnetic spectrum Gamma Rays Visible light - “Roy G Biv” Red, orange, yellow, green, blue, indigo, violet What is the difference between Luminous objects generate their own light, Eg, sun, light bulb, fire flies, luminous and non-luminous ect. Non-luminous objects do not generate their own light Why can we see non-luminous Non-luminous objects can reflect light so it looks like they do, eg moon objects reflects sun light. What are the 4 types of light. Incandescent - copper coil wires that heat up to make light - not very efficient Flourescent - argon gas and mercury react to shine off of a coated light bulb. - more efficient but has toxic mercury. CFL lights are used since they are tightly compacted LED - Light emitting Diodes - Very efficient (eg christmas lights) very little heat generated - safe Chemiluminescence - Chemical reaction forms light - Bioluminescence - organisms produce their own light, Eg firefly, jelly fish. List the primary colours that Red, Green, Blue produce white light produce light (computer diodes are these colors) What are the secondary colours Red + Blue = Magenta and what 2 primary colours make Red + Green = Yellow the secondary colour Blue + Green = Cyan What is True Colour The colour of an item that is under white light. No filtered light. What happens when you combine They produce white light the primary colours of light together What happens when you combine They produce white light because the secondary colours are made up magenta, cyan and yellow of primary colours. together What happens when you combine Pigments are dyes (paint) in this case they produce black. A computer magenta, cyan and yellow printer uses these colour dyes to do colour printing. pigment together What is a light sensitive cell in Cones (there are three types - red, green, blue your eye Name the colour of light from each a) Black - no reflection of light of the following b) Cyan light (G & B) on yellow will reflect only green so it will look like green, Blue will be absorbed. c) Red and Green will pass through and you will see Yellow d) Magenta colour Red and Blue. a) White light shine on cyan so you see Yellow (Red and Green) This one is wrong. Should be Blue Green. b) Magenta light is shining on yellow pigment so you see only red. c) White light through a transparent filter shows white light. d) White light through a cyan filter. Looks like cyan Green and Blue. What is the difference Transparent, Light goes through Transparent Translucent, some light goes through, looks blurred Translucent Opaque, no light goes through Opaque Why do you see white light when Complementar colours are the colours across from each you mix complementary colours other, this would mean that they are a mixture of all three together of the primary colours. Eg Blue and Yellow (mixture of red and green) are complementary colours. Why are governments asking Because fluorescent and LED bulbs are more efficient and they last companies to switch from longer than incandescent light bulbs. incandescent to fluorescent CFL or LED lights? Chapter 12 Mirrors Study Guide What is a plane mirror A flat mirror - S - Same size A - Upright L - Equal distance from object but backwards T - virtual What is a converging mirror A concave or mirror that bends inwards. S - small is far from mirror but magnified if close to the mirror. A - Inverted when object far from mirror or upright when object is close to mirror L - In front of mirror when object is far from mirror but in mirror when close T - Real image when inverted and virtual when upright. What is a diverging mirror A convex mirror or the mirror is bending outwards. S - Upright A - smaller than object L - behind mirror T - virtual The angle between the reflective 37Degrees. ray and the normal is 37 degrees. Incidence angle and reflective angle are the ame - Law of Reflection. What is the angle of incidence? How is the image size in a plane Same size and virtual just backwards. mirror related to the object size? What type of image is it? What does SALT stand for? What Size - size of image does it mean? Attitude - Orientation of the image Location- Where image is, in front or behind the mirror Type - Real or virtual image Does a freshly waxed car produce Regular reflection a regular or diffuse reflection? An image is upside down and It is being formed with a concave mirror. real. What can you infer about the image? Draw the image from the reflection. What type of image is it - SALT? What type of mirror is it? (should know how to draw all types) What are Converging mirrors Shaving mirrors used for in real life? Research Head mirrors and find examples (NOT Ophthalmoscope LENSES) Astronomical telescopes Headlights Solar furnaces What are diverging mirrors used Side mirrors on the car for in real life? Research and find Security mirror for corners and in store. examples. (NOT LENSES)