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प्रश्न
An image that cannot be obtained on a screen is called ______.
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उत्तर
An image that cannot be obtained on a screen is called virtual image.
Explanation:
A virtual image is formed by diverging light rays and appears to be located behind the lens or mirror, making it impossible to project onto a screen.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal focus
Define the Focal length of a spherical mirror
What type of image is formed:
on a cinema screen?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of carbon paper for some time, a hole is burnt in the carbon paper.
- What is the nature of spherical mirror?
- Why is a hole burnt in the carbon paper?
- At which point of the spherical mirror the carbon paper is placed?
- What name is given to the distance between spherical mirror and carbon paper?
- What is the advantage of using a carbon paper rather than a white paper?
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
Draw suitable diagrams to illustrate the action of (i) concave mirror and (ii) convex mirror on a beam of light incident parallel to the principal axis.
Write two more characteristics of the image.
Upto what maximum distance from a concave mirror, the image can be obtained? What will be the location of object for it?
What is the relation between focal length and radius of curvature of a concave mirror?
