Lab Ray Optics
Simulation App Used: https://ricktu288.github.io/ray-optics/simulator/
Activity 1 Determine the Focal Distance of a Concave Mirror
You will determine the focal distance of a spherical mirror in two different ways and compare your results (they should be equal if everything is correct).
Setup 1 Parallel beam will go through the focus of a mirror
Select a Circular Arc from the Mirrors menu and set up a spherical mirror on the screen.
Select a beam of rays and let them be parallel to the mirror's main axis. They will be reflected through one point, the focus.
Using the ruler, measure the focal distance (in pixels) from the mirror to where the beam is reflected in the focus.
Note. Remember to save your pictures (screenshots) for your lab submission!
'"'____'C'"""-""J 'l' ""1 _...._.._.-_. Redo Reset Save Open Beam Point source Mirrors ' Extended rays All lm segment A mirror whose shape is part of a circle, which is defined by three points. (Drag or click to create. First 2 points define the gap between arc's edges, the last point defines the arc's size.) 1 .GRADE ... Lab Ray Optics Q Home Insert Draw Design Layout References Mailings Review View Acrobat . Tell me Comments & Editing Share Get Add-ins X A|~ ~ A= Field TT - Q LG Date & Time Cover Blank Page Table Pictures Shapes Icons 3D SmartArt Chart Screenshot My Add-ins v Wikipedia Media Link Bookmark Cross-reference Comment Header Footer Page Text Box WordArt Drop Page Page Break Models Number Cap Object v Equation Advanced Symbol Results Are the values from Setup1 and Setup2 equal to each other? fi = f2 = Percent Difference: If1 -f2l x 100 % = f1 Page 1 of 5 477 words QX English (United States) Focus 19071 .GRADE ... Lab Ray Optics Q Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Comments & Editing Share Get Add-ins X A|~ ~ A= ]Field TT - Q LG Date & Time Cover Blank Page Table Pictures Shapes Icons 3D SmartArt Chart Screenshot My Add-ins v Wikipedia Media Link Bookmark Cross-reference Comment Header Footer Page Text Box WordArt Drop Number Cap Object v Equation Advanced Page Page Break Models Symbol Activity 2 The Focal Distance of a Converging Lens The Lens equation has an identical form as the Mirror Equation. The difference here is that the negative distances are those that appear in front of the lens and not behind. Open Mirrors Glasses Blocker ages Seer Half-plane Reset to clear up the simulation and select an ideal lens Circle hap to Grid from the Glass menu. Free-shape Move the focal distance slider left and right to set up the focal distance to be 200 pixels. Ideal Lens Ideal lens Focal length: 200 Duplicate Delete Page 4 of 5 477 words X English (United States) Focus E1 .GRADE ... Lab Ray Optics Q Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Comments & Editing Share Get Add-ins Field TT - Q LG Date & Time Cover Blank Page Table Pictures Shapes Icons 3D SmartArt Chart Screenshot My Add-ins v Wikipedia Media Link Bookmark Cross-reference Comment Header Footer Page Text Box WordArt Drop Equation Advanced Page Page Break Models Number Cap Object v Symbol focal distance to be 200 pixels. IUGal LOTTO deal lens Focal length: 200 Duplicate Delete Select a point source and place it a distance from the lens. The rays from the point source will refract through the lens and intersect again at the image location. Use the ruler to determine do and di Calculate the focal distance using the equation and compare it with the 200 that you set up in the beginning of the activity. Page 4 of 5 477 words x English (United States) Focus E LOGI1 .GRADE ... Lab Ray Optics Q Home Insert Draw Design Layout References Mailings Review View Acrobat ? Tell me Comments & Editing Share Get Add-ins X A V v A= Field TT - Q LG Date & Time Cover Blank Page Table Pictures Shapes Icons 3D SmartArt Chart Screenshot 6 My Add-ins v Wikipedia Media Link Bookmark Cross-reference Comment Header Footer Page Text Box WordArt Drop Equation Advanced Page Page Break Models Number Cap Object v Symbol Results Are the values from Setup1 and Setup2 equal to each other? f1 = f2 =_200 Percent Difference: If1 -2001 x 100 % = 200 Activity 3 Focal Distance of Diverging Lens Clear up the simulation and set up an ideal lens from the glass menu. Move the lens focal distance slider to -200. Now you have a diverging lens. Place a point source in front of the lens and measure d. and d; with the ruler. Use the mirror equation to determine f. Remember to use the value of d, as a negative number because the image is on the "wrong" Page 5 of 5 477 words X English (United States) Focus 13070
