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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
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
State whether this spherical mirror will diverge or converge light rays.
What do you mean by the term dispersion?
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the convex mirror.
Define the following term in relation to concave mirror.
Principal focus
Define the term Focus of a concave mirror.
Draw a ray diagram to show that a convex mirror has a wider field of view.
