Mirrors and lenses
Quiz by Liz Davidson
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30 questions
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- Q1What type of lens is thinner in the middle and thicker at the edges?Biconvex lensConvex lensConcave lensFlat lens30s
- Q2Which mirror type always produces a virtual image that appears upright?Biconcave mirrorConcave mirrorConvex mirrorFlat mirror30s
- Q3What is the focal point of a lens or mirror?The point where light is least intenseThe center of the lens or mirrorThe point where light rays converge or appear to diverge fromThe distance from the lens or mirror30s
- Q4What type of lens is used to magnify objects, such as in a magnifying glass?Cylindrical lensFlat lensConvex lensConcave lens30s
- Q5Which property of mirrors determines whether they can form real images?The size of the mirrorThe curvature of the mirrorThe color of the mirrorThe material of the mirror30s
- Q6What is the main difference between real and virtual images?Virtual images are always invertedReal images are always smaller than virtual imagesReal images are formed by concave mirrors onlyReal images can be projected on a screen, while virtual images cannot30s
- Q7What happens to light rays that pass through a convex lens?They remain parallelThey reflect back in the same directionThey converge to a pointThey diverge outward30s
- Q8What do you call the distance from the lens or mirror's surface to its focal point?Radius of curvatureImage distanceReflective distanceFocal length30s
- Q9Which type of mirror is typically used in vehicle side mirrors to provide a wider field of view?Concave mirrorFlat mirrorConvex mirrorPlanar mirror30s
- Q10What type of lens is thicker in the middle and thinner at the edges?Biconcave lensConcave lensConvex lensFlat lens30s
- Q11What type of lens is thicker in the middle and causes parallel light rays to converge?Diverging lensConvex lensPlane mirrorConcave lens30s
- Q12What type of mirror always produces a virtual image that is upright?Convex mirrorFlat surfacePlane mirrorConcave mirror30s
- Q13Which of the following describes the behavior of light when it passes through a converging lens?Light rays are reflected backLight rays converge to a focal pointLight rays do not change directionLight rays diverge away from each other30s
- Q14What type of lens is commonly used to correct nearsightedness?Biconvex lensConvex lensFlat lensConcave lens30s
- Q15What is the focal point of a lens?The center of the lensThe point where parallel light rays converge or appear to divergeThe edge of the lensThe distance between two lenses30s