What happens to the rays falling parallel to the axis on a concave lens answer in one word?
Answer: An incident light ray parallel to the principal axis of a concave lens passes through it and diverges. … The incident rays which are parallel to the principal axis appear to diverge from a point on the principal axis after entering through the concave lens.
When parallel light rays pass through a concave lens?
A lens’s shape determines the images it forms. When parallel rays of light enter a concave lens, the light waves refract outward, or spread out. The light rays refract twice: first when entering the lens and second when leaving the lens. Only the light rays passing through the center of the lens remain straight.
What is the image formed by concave lens?
Hence, the image formed by a concave lens is always erect and virtual.
What happens if a ray passes through principal axis?
Answer: Explanation: One ray of light becomes parallel to the principal axis of the lens and thus, passes through another focus after refraction through the lens. Another ray of light passes through the optical centre of the lens and goes straight.
Is a convex lens?
A convex lens is also known as a converging lens. A converging lens is a lens that converges rays of light that are traveling parallel to its principal axis. They can be identified by their shape which is relatively thick across the middle and thin at the upper and lower edges.
Are virtual images always upright?
Virtual images are always located behind the mirror. Virtual images can be either upright or inverted. Virtual images can be magnified in size, reduced in size or the same size as the object. … Virtual images result when the reflected light rays diverge.
Can convex lens give diverging rays?
Can convex lenses give diverging rays? Yes, it is possible in specific circumstances. If the refractive index of the material of the medium is made using materials that have a lower refractive index than the surrounding. An air bubble in water appears like a convex lens and acts as a diverging lens.