22.5 Thin Lenses Virtual Image by a Converging Lens |
| Instructions: The animation starts automatically. To stop it, position the mouse cursor over the image then press the left mouse button. You may replay the video by clicking on the video with the left mouse button. Windows: Pressing the right mouse button will invoke a menu that you can use to control the video. You can fast forward, rewind, and move in either direction one frame at a time. With some browsers, a VCR-type control panel appears below the video. Mac: You can control the video by using the VCR-type control panel appearing below the video. Navigation: You can come back to this window by pressing the "Close Simulation" button on the bottom frame of the utility. |
| Explanation: The video shows a single convergent lens with the object placed inside the focal point, so a virtual image is formed. As shown, a viewing screen cannot be used to project a virtual image. The object used in this simulation is the letter T. The lens is represented by a blue circle with dots placed on either side to designate the focal point. The moving gray square simulates a viewing screen. As discussed in section 22.5, a virtual inverted image is formed on the same side of the lens. You can determine this position of this image either by using a ray diagram as shown in section 22.6 or by using equation 22.5. |
Source: Go to the web site and link to the Online Library for further information. |