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प्रश्न
Give two characteristics of the image formed by a concave lens.
उत्तर
Two characteristics of image are
- It is always virtual and upright (ERECT).
- It is always diminished.
संबंधित प्रश्न
If the numerical value of the power of this lens is 10 D, what is its focal length in the Cartesian system ?
Where must the object be placed for the image formed by a converging lens to be:
real, inverted and larger than the object?
An object 2 cm tall stands on the principal axis of a converging lens of focal length 8 cm. Find the position, nature and size of the image formed if the object is:
(i) 12 cm from the lens
(ii) 6 cm from the lens
State one practical application each of the use of such a lens with the object in position (i) and (ii).
A ray of light is going towards the focus of a concave lens. draw a ray diagram to show the path of this ray of light after refraction through the lens.
Give the position, size and nature of image of formed by a concave lens when the object is placed:
at infinity.
An object is placed 10 cm from a lens of focal length 5 cm. Draw the ray diagrams to show the formation of image if the lens is diverging.
What kind of lens is used to correct
short-sightedness
Give two characteristic of the image formed by a concave lens.
The diagrams showing the correct path of the ray after passing through the lens are:
 |
 |
| I | II |
 |
 |
| III | IV |
A lens forms an image between the object and the lens. Name the lens.
