You are given a concave mirror with focal length 40.0cm. Youstart with an object
ID: 1747665 • Letter: Y
Question
You are given a concave mirror with focal length 40.0cm. Youstart with an object 50.0cm high at 160cm in front of themirror. A)What are the characteristics of the image? B) Now you move the object in toward the vertex of the mirror,ending with the object at a distance of 25.0cm from the vertex.What are the new characteristics of new image and describe thebehavior of the image in moving from A) to B). You are given a concave mirror with focal length 40.0cm. Youstart with an object 50.0cm high at 160cm in front of themirror. A)What are the characteristics of the image? B) Now you move the object in toward the vertex of the mirror,ending with the object at a distance of 25.0cm from the vertex.What are the new characteristics of new image and describe thebehavior of the image in moving from A) to B).Explanation / Answer
a.when the object is 160 cm in front of the mirror,then it isbeyond the center of curvature of the mirror.When the object islocated at a location beyond the center of curvature, the imagewill always be located somewhere in between the center of curvatureand the focal point. Regardless of exactly where the object islocated, the image will be located in the specified region. In thiscase, the image will be an inverted image. That is to say, if theobject is right-side up, then the image is upside down. In thiscase, the image is reduced in size; in other words, the imagedimensions are smaller than the object dimensions.
b.when the object is at a distance of 25.0cm from thevertex,then the object is beyond the focal point.When the object islocated at a location beyond the focal point, the image will alwaysbe located somewhere on the opposite side of the mirror. Regardlessof exactly where in front of F the object is located, the imagewill always be located behind the mirror. In this case, the imagewill be an upright image. That is to say, if the object isright-side up, then the image will also be right-side up. In thiscase, the image is magnified; in other words, the image dimensionsare greater than the object dimensions.
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