ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>PhysicsLessons.com - Mirrors &amp; Lenses Quiz</title> <script src="shared.js" type="text/javascript" ></script> <script type="text/javascript"> <!-- /* Some font settings can be changed on the pop-up results page. Edit these here: */ Font("Times New Roman"); FontSize("12"); BackgroundColor("white"); /* BELOW IS WHERE YOU MODIFY THE QUESTIONS AND ANSWERS. Do not use double-quotes (") in the questions and answers, since that's what the program uses to tell when your text begins and ends. Single-quotes are okay. */ Question("If an object is outside the focal point on a concave mirror, the image will be"); WrongChoice("virtual and inverted."); CorrectChoice("real and inverted."); WrongChoice("virtual and upright."); WrongChoice("none of the above."); /*?*/ Question("Images formed by concave lenses are"); WrongChoice("real and inverted."); CorrectChoice("virtual."); WrongChoice("enlarged."); WrongChoice("none of the above."); Question("A 20 cm tall object has a 40 cm tall virtual image. What is the magnification?"); WrongChoice("0.5"); CorrectChoice("2"); WrongChoice("3"); WrongChoice("4"); /*?*/ Question("A convex lens has a focal length of 25.5 cm. If an object is placed 72.5 cm from the lens, the image's distance from the lense will be"); WrongChoice("31.7 cm"); WrongChoice("33.5 cm"); CorrectChoice("39.3 cm"); WrongChoice("none of the above."); Question("Which type of mirror produces an image that is always erect, always the same height as the object, and always virtual?"); WrongChoice("Concave"); WrongChoice("Convex"); CorrectChoice("Plane"); WrongChoice("None of the above"); Question("A concave mirror has a radius of curvature of 1.6 m. The focal length is"); CorrectChoice("0.80 m."); WrongChoice("3.2 m."); WrongChoice("32 cm."); WrongChoice("none of the above."); Explanation("The focal length is always 1/2 the length of curvature."); Question("The bending of light as it travels from one medium into another is called"); WrongChoice("reflection."); WrongChoice("diffraction."); CorrectChoice("refraction."); WrongChoice("none of the above."); Question("The law that describes the relationship between the angle of incidence and the angle of reflection is called"); CorrectChoice("the law of reflection."); WrongChoice("the law of refraction."); WrongChoice("a virtual image."); WrongChoice("none of the above."); Question("If your face is 62 cm in front of a plane mirror, where is the image of your face located?"); WrongChoice("62 cm in front of the mirror"); CorrectChoice("62 cm in back of the mirror"); WrongChoice("62 cm below the mirror"); WrongChoice("31 cm in front of the mirror"); Question("Images created by convex mirrors are always"); CorrectChoice("smaller than the object."); WrongChoice("the same size as the object."); WrongChoice("larger than the object."); WrongChoice("none of the above."); // --> </script> </head> <body> <font face="tahoma, verdana, arial, times" size="2"> <a href="../"><img title="PhysicsLessons.com - Physics for a NEW Generation" src="/smalllogo2.gif" width="314" height="80" alt="" border="0" ></a><br> <a href="/quizzone.htm"><img border="0" src="/quizzonelogo.gif"></a></font> <h1>Quiz 14. Mirrors &amp; Lenses</h1> <!-- The following line goes where you want the quiz to be inserted --> <script src="output.js" type="text/javascript" ></script> <font face="verdana" size="1"> <p align="center">Copyright 2009, PhysicsLessons.com</p> </font> </body> </html>