If the image formed by a lens is always diminished and erect, what is the nature of the lens?
If the image formed by a lens is always diminished and erect, then the nature of the lens is concave.
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, gets spread out, or diverges, which results in forming a smaller image. Due to this effect, it is also called a negative lens or a diverging lens.
The image formed by a concave lens is always virtual, erect, and diminished.
![](/assets/questions/media/158636-44997-1620581158.png)
Related Articles
- What is the nature of the image formed by a convex lens if the magnification produced by the lens is +3?
- What is the nature of the image formed by a convex lens if the magnification produced by the lens is, $-$ 0.5?
- A ___________ lens will always give a virtual, erect, and diminished image, irrespective of the position of the object.
- 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.
- Show by drawing a ray-diagram that the image of an object formed by a concave lens is virtual, erect and diminished.
- An image formed by a lens is erect. Such an image could be formed by a$(a)$. convex lens provided the image is smaller than object.$(b)$. concave lens provided the image is smaller than object.$(c)$. concave lens provided the image is larger than object.$(d)$. concave lens provided the image is of the same size.
- Things always look small on viewing through a lens. What is the nature of the lens?
- 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
- For what position of an object a real, diminished image is formed by a convex lens?
- If the image formed by a convex lens is of the same size as that of the object, what is the position of the image with respect to the lens?
- When an object is placed 10 cm in front of lens A, the image is real, inverted, magnified and formed at a great distance. When the same object is placed 10 cm in front of lens B, the image formed is real, inverted and same size as the object.(a) What is the focal length of lens A?(b) What is the focal length of lens B?(c) What is the nature of lens A?(d) What is the nature of lens B?
- 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?
- 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?
- The lens A produces a magnification of, $-$0.6 whereas lens B produces amagnification of $+$0.6.(a) What is the nature of lens A?(b) What is the nature of lens B?
- An erect image 2.0 cm high is formed 12 cm from a lens, the object being 0.5 cm high. Find the focal length of the lens.
Kickstart Your Career
Get certified by completing the course
Get Started