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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
Name the type of mirror used in the following situation:
Headlights of a car
Support your answer with reason.
With the help of a ray diagram, determine the position, nature and size of the image formed of an object placed at the centre of curvature of a concave mirror.
Make labelled ray diagrams to illustrate the formation of:
- a real image by a converging mirror.
- a virtual image by a converging mirror.
Mark clearly the pole, focus, centre of curvature and position of object in each case.
- Draw ray-diagrams to show the formation of images when the object is placed in front of a concave mirror (converging mirror):
- between its pole and focus
- between its centre of curvature and focus.
Describe the nature, size and position of the image formed in each case.
- State one use of concave mirror based on the formation of image as in case (i) above.
According to the “New Cartesian Sign Convention” for mirrors, what sign has been given to the focal length of:
- a concave mirror?
- a convex mirror?
A child is standing in front of a magic mirror. She finds the image of her head bigger, the middle portion of her body of the same size and that of the legs smaller. The following is the order of combinations for the magic mirror from the top.
The mirror having reflection surface curved outward ______.
State whether the following statement is True or False.
The sides of an object and its image formed by a concave mirror are always interchanged
In torches, searchlights, and headlights of vehicles, the bulb is placed ______ of the concave mirror.
The focal length of a concave mirror is 5cm. Its radius of curvature is ______.
