A lens is formed by two curved pages or one curve and the second flat surface and a transparent medium like the glass are filled or exists between the two pages. The lens can have any type of curved surface such as spherical, parabolic, or cylindrical. But we usually talk about or use a spherical lens. That is, when someone tells us about a lens, we generally think of it as a spherical lens. And in the middle there is a transparent medium, so we can also say clearly that there is the refraction of light from both pages. The side from which light enters or enters the lens is called the first page of the lens and after refraction from both pages, the page from which the light exits the lens is called the second page. Let's play an awesome quiz about Lens in Physics.
1. There are nine types of glass according to...
A. Minor additions
B. Variations in the ingredients
C. Methods of manufacturing
D. All of the above
2. The distance between the focal point and the center of the lens is called...
A. Focal length
B. Optical axis
C. Focal point
D. Diopter
3. Which one is the type of lenses?
A. Converging
B. Diverging
C. Concave Lens
D. All of the above
4. Which one of the types of Camera Lenses?
A. Telephoto Lenses
B. Prime Lenses
C. Zoom Lenses
D. All of the above
5. Which one of the best describes a converging lens?
A. A lens that causes light rays to scatter
B. A lens that will cause light rays from a specific focal point to spread out
C. A lens that will cause light rays to bend to a specific focal point
D. None of the above
6. Which type of lens is parallel/flat lines?
A. Concave
B. Meniscus
C. Convex
D. Plano
7. The type of lens has a center that is thicker than the edges, known as...
A. Meniscus
B. Concave
C. Convex
D. All of the above
8. "A lens that will cause light rays from a specific focal point to spread out" this statement follows on which lens?
A. Diverging
B. Meniscus
C. Concave
D. Convex
9. Plano-concave lenses are ___________ lenses...
A. Converging
B. Diverging
C. Positive meniscus
D. None of these
10. Which type of lens has one side that is convex and the other side concave?
A. Biconcave
B. Plano-convex
C. Meniscus
D. Plano-concave
11. What type of lens has two sides that are both convex?
A. Plano-convex
B. Biconvex
C. Biconcave
D. All of the above
12. The principal axis is a horizontal line drawn through the ____________ of the lens.
A. Vertical
B. Center
C. Adge
D. Parallel
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