what is the relationship between the angle between two mirrors and the image formed?
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The number of images formed by two adjacent plane mirrors depends on the angle between the mirror. If (in degrees) is angle between the plane mirrors then number of images are given by, n = 360 θ − 1. ( ( 360/x ) - 1 ) . The number of images formed is equal to ( 360 / 90 ) - 1 = 4 – 1 = 3.
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The focal length ( f ) is the distance from a lens or mirror to the focal point ( F ). This is the distance from a lens or mirror at which parallel light rays will meet. (right) a concave mirror. Note that a lens has a focal point on both sides of the lens axis.
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A mirror image is the result of light rays bounding off a reflective surface. When people look into a mirror, they see an image of themselves behind the glass. ... The reflection of light rays is one of the major aspects of geometric optics; the other is refraction, or the bending of light rays.
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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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f, the focal length, is positive for a concave mirror, and negative for a convex mirror. ... When the image distance is negative, the image is behind the mirror, so the image is virtual and upright. A negative m means that the image is inverted. Positive means an upright image.
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Visible white light that is directed onto the surface of a mirror at an angle (incident) is reflected back into space by the mirror surface at another angle (reflected) that is equal to the incident angle, as presented for the action of a beam of light from a flashlight on a smooth, flat mirror in Figure 2.
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If the image and object are on the same side of the lens, the image distance is negative and the image is virtual. For converging mirrors, the focal length is positive. ... Note that in certain cases involving more than one lens the object distance can be negative.
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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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['Plane Mirror — These are flat mirrors that reflect images in their normal proportions, reversed from left to right. ... ', 'Concave Mirror — Concave mirrors are spherical mirrors that curve inward like a spoon. ... ', 'Convex Mirror — Convex mirrors are also spherical mirrors.']
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The focal length of the concave mirror is given as f. As per the sign convention for mirror, the focal length is taken as negative as it is measured opposite to the direction of light. Hence, focal length f = -f. The distance of the object from the principal focus is p.
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A concave mirror can form both real, inverted images of various sizes and virtual, erect and enlarged images depending on the position of the object whereas a concave lens forms only virtual, diminished and erect images for all positions of the object.
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A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to diverge. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is inverted.
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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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Answer and Explanation: Concave mirrors reflect upside-down because the curved surface of the mirror makes light bend at different angles.
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An incident ray of light hits a plane mirror at an angle and is reflected back off it. The angle of reflection is equal to the angle of incidence. Both angles are measured from the normal.
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You can measure the radius of curvature (R) of the mirror by measuring the distance between convex mirror and the screen placed behind the mirror. You can calculate the focal length of the mirror using the equation f = R/2. You can verify you result by clicking on the 'Show result' button.
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f, the focal length, is positive for a concave mirror, and negative for a convex mirror. When the image distance is positive, the image is on the same side of the mirror as the object, and it is real and inverted. When the image distance is negative, the image is behind the mirror, so the image is virtual and upright.