A ___________ lens will always give a virtual, erect, and diminished image, irrespective of the position of the object.
A concave lens will always give a virtual, erect, and diminished image, irrespective of the position of the object.
Explanation
Diverging Lens or Concave Lens - It is a lens that possesses at least one surface that curves inwards in the middle. In other words, it is thin across the middle and thick at the upper and lower edges, because of which the light that enters the lens, get spread out, or diverge, which results in forming a smaller image. Due to this effect, it is also known as a negative lens or a diverging lens.
The image formed by a concave lens is always diminished (very small), virtual and erect, which means it will appear to be farther away than it actually is, and therefore smaller than the object itself.
S.No. | Ray Diagram | Position of Object | Position of Image | Nature of the Image |
1. |
| At Infinity. | At F | Virtual, erect and highly diminished. |
2. | | Between Infinity and O. | Between F and O. | Virtual, erect and |
Related Articles
- Which mirror always produces a virtual, erect and diminished image of an object?
- When an object is kept at any distance in front of a concave lens, the image formed is always:(a) virtual, erect and magnified (b) virtual, inverted and diminished(c) virtual, erect and diminished (d) virtual, erect and same size as object
- If the image formed by a lens is always diminished and erect, what is the nature of the lens?
- Show by drawing a ray-diagram that the image of an object formed by a concave lens is virtual, erect and diminished.
- Name the mirror which can give:(a) an erect and enlarged image of an object.(b) an erect and diminished image of an object.
- Which type of lens forms always a virtual image?
- The image formed by a lens is always virtual, erect and smaller in size for an object kept at different positions in front of it. Identify the nature of the lens.
- A 50 cm tall object is at a very large distance from a perging lens. A virtual, erect and diminished image of the object is formed at a distance of 20 cm in front of the lens. How much is the focal length of the lens?
- What kind of lens can form:(a) an inverted magnified image?(b) an erect magnified image?(c) an inverted diminished image?(d) an erect diminished image?
- For what position of an object a real, diminished image is formed by a convex lens?
- If the magnification produced by a lens has a negative value, the image will be(a) virtual and inverted (b) virtual and erect (c) real and erect (d) real and inverted
- Name the spherical mirror which can produce a virtual and diminished image of an object.
- Which type of mirror can form a real image, and which type of lens forms always a virtual image?
- An object is placed at the following distance from a convex lens of focal length 15 cm:(a) 35 cm (b) 30 cm (c) 20 cm (d) 10 cmWhich position of the object will produce:(i) a magnified real image?(ii) a magnified virtual image?(iii) a diminished real image?(iv) an image of same size as the object?
- Where should an object be placed in front of a convex lens so as to obtain its virtual, erect and magnified image?
Kickstart Your Career
Get certified by completing the course
Get Started
To Continue Learning Please Login
Login with Google