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प्रश्न
You are provided with a concave mirror, a convex mirror, a concave lens and a convex lens. To obtain an enlarged image of an object you can use either
पर्याय
concave mirror or convex mirror.
concave mirror or convex lens.
concave mirror or concave lens.
concave lens or convex lens.
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उत्तर
concave mirror or convex lens.
Explanation:
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A concave mirror can produce an enlarged image when the object is placed between the focal point and the mirror. This forms a magnified, virtual image.
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A convex lens can also produce an enlarged image when the object is placed closer to the lens than its focal point. This forms a magnified, virtual image as well.
In contrast:
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A convex mirror always forms a diminished, virtual image.
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A concave lens always produces a diminished, virtual image.
Therefore, the correct options for obtaining an enlarged image are concave mirror and convex lens.
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संबंधित प्रश्न
Draw a ray diagram to show the path of the reflected ray corresponding to an incident ray of light parallel to the principal axis of a concave mirror. Mark the angle of incidence and angle of reflection on it.
Fill in the following blank with suitable word:
Parallel rays of light are reflected by a concave mirror to a point called the ..........
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Name the type of mirror used by dentists. How does it help?
An object is placed at a distance of 10 cm from a concave mirror of focal length 20 cm.
An object 3 cm high is placed at a distance of 8 cm from a concave mirror which produces a virtual image 4.5 cm high:
(i) What is the focal length of the mirror?
(ii) What is the position of image?
(iii) Draw a ray-diagram to show the formation of image.
An object is placed at a large distance in front of a concave mirror of radius of curvature 40 cm. The image will be formed in front of the mirror at a distance:
(a) 20 cm
(b) 30 cm
(c) 40 cm
(d) 50 cm
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