what is the difference between the image formed by a large and a small mirror?
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Explanation: Plane mirror forms image exactly the same size as the object is. ... So the difference in size of the image of the same object formed by a small and large plane mirror will be zero.
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Focal length (shown in red) is the distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror — the point where parallel rays of light meet, or converge.
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A spherical mirror is a part of a spherical reflecting surface. ... Convex Mirror: Convex mirror is a curved mirror for which the reflective surface bulges out towards the light source. Convex mirrors reflect light outwards (diverging light rays) and therefore they are not used to focus light.
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In a concave mirror, the light rays from the object converge after reflection. ... Hence the focal length of a concave mirror is negative. In a convex mirror, the light rays from the object diverge after reflection.
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Plane mirrors and convex mirrors only produce virtual images. Only a concave mirror is capable of producing a real image and this only occurs if the object is located a distance greater than a focal length from the mirror's surface.
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The distance from the pole to the focal point is called the focal length (f). The focal length of a spherical mirror is then approximately half its radius of curvature. It is important to note up front that this is an approximately true relationship. ... Convex mirrors are diverging mirrors .
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A spherical mirror is formed by cutting out a piece of a sphere and silvering either the inside or outside surface. A concave mirror has silvering on the interior surface (think “cave”), and a convex mirror has silvering on the exterior surface.
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The number of images is 360/x, where x is the angle between the two mirrors. If the angle x is 60 there will be 5 images plus the one object that is reflected by the two mirrors. In a barber's saloon the mirrors are placed parallel, one in front of you and the other behind you. So there will be infinite images.
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For plane mirrors, the object distance (is equal to the image distance. That is the image is the same distance behind the mirror as the object is in front of the mirror. If you stand a distance of 2 meters from a plane mirror, you must look at a location 2 meters behind the mirror in order to view your image.
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Mirrors help reflect light and make a room feel larger at the same time. In rooms with little sunlight, add a large mirror on the wall above a fireplace, over a sofa or behind a bed to make the room feel lighter. The reflectivity of mirrors makes them a perfect decorating tool when sunlight is at a minimum.
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Plane mirrors and convex mirrors will always produce an upright image. A concave mirror will only produce an upright image if the object is located in front of the focal point.
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The focal length of a concave mirror is negative and that of a convex mirror is positive. You can also prove the same by using the mirror formula (1/f = 1/v +1/u). Let's see how, Since we know object is always placed on the left side or direction opposite to the incidence ray of the mirror.
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Answer: "Focal length is positive" is one of the option that doesn't apply for the concave mirror. Explanation: The focal length is negative for a concave mirror since according to the Cartesian Sign, the object is placed "in front of the mirror" and the sign of the object is taken as 'negative'.
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Two-way mirrors work on a principle of light intensity. If the light intensity is the same on both sides of the glass, the mirror will look like a normal piece of glass. But when the light is bright on one side, and much darker on the other, the glass will look like a mirror to the people on the brighter side.
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The closer the object to the focal pointis, the higher is the magnification rate. If the object is placed 2X of the focal length, then the object and the real image will have the same size. If the objet´s distance is farther than 2X-focal lenth, then the real image becomes demagnified – is smaller than the object.
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For plane mirrors, the object distance (often represented by the symbol do) is equal to the image distance (often represented by the symbol di). That is the image is the same distance behind the mirror as the object is in front of the mirror.
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A convex mirror forms only virtual, diminished and erect images for all positions of the object, whereas a convex lens can form both real, inverted images of various sizes and virtual, erect and enlarged images depending on the position of the object.