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प्रश्न
A ............ mirror always forms a virtual image.
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उत्तर
A convex mirror always forms a virtual image.
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संबंधित प्रश्न
Describe with a suitable diagram, how a convex mirror diverges a parallel beam of light rays. Mark clearly the pole, focus and centre of curvature of convex mirror in this diagram.
Which mirror has a wider field of view?
If you want to see an enlarged image of your face, state whether you will use a concave mirror or a convex mirror?
- Draw a labelled ray diagram to show the formation of image in a convex mirror when the object is at infinity. Mark clearly the pole and focus of the mirror in the diagram.
- State three characteristics of the image formed in this case.
- Draw diagram to show how a convex mirror can be used to give a large field of view.
Draw ray diagrams to represent the nature, position and relative size of the image formed by a convex lens for the object placed:
- at 2F1,
- between F₁ and the optical centre O of the lens.
Which of the above two cases shows the use of a convex lens as a magnifying glass? Give reasons for your choice.
What is the effect on the size and position of the image of moving the object (i) towards the lens and (ii) away from the lens?
The focal length of a convex mirror is equal to its radius of curvature.
A full length image of a distant tall building can definitely be seen by using ______.
Assertion: A real image cannot be produced by plane or convex mirror.
Reason: The focal length of a convex mirror is always taken as positive.
Why a convex mirror is preferred for rearview mirrors in cars?
