difference between convex and concave lenses
Answers
Answer:
Difference between Concave and Convex Lens. A convex lens or converging lens focuses the light rays to a specific point whereas a concave lens or diverging lens diverges the light rays. A lens is a transparent material (either curved or flat surface) based on the principles of refraction.
Explanation:
Concave vs Convex
Appearance
A concave lens is thinner in the middle and thicker at the edges.
A convex lens is thicker in the middle and thinner at the edges.
Also known as
It is also known as Diverging Lens concave
It is also known as Converging Lens convex
Application
Used in Glasses, some telescopes, spy holes in doors, etc. It is also used for the correction of the problem in short sight concave
Used in camera, focus sunlight, overhead projector, projector microscope, simple telescope, magnifying glasses, etc. It is also used for the correction of the problem in long sight. convex
Focal Length
Negative Focal Length concave
Positive Focal Length convex
Incident Rays
It diverges the incident rays away from the principal axis. concave
It converges the incident rays towards the principal axis. convex
Type of Image Formed
The image formed is upright, virtual, and smaller size than the object. The position of the image formed is in between the lens and the object regardless of the object’s position concave
The image formed is inverted, real, and smaller than the object when the object is placed at Focus. The image formed is inverted, real, and same size as the object when the object is placed at 2F. The image formed is inverted, real, and larger than the object when the object is placed between 2F and F. No image is formed when the object is placed at Focus (F). The image formed is upright, Virtual, and larger than the object when the object is placed on the same side of the lens. convex
Explanation:
convex lens:
*it is also known as converging lens.
*all the nature of the images are real and inverted except the last case.
concave lens:
*it is also known as diverging lens.
*all the nature of the image are virtual and erect.
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