changes in a physical states of a substance is called physical changes.
spread out
When they are entering a concave lens they are refracted and bend away from each other.
The difference between the two is that once the light passes through the concave lens it diverges, and the rays are refracted outward, and never meet a focal point. Then there is the parallel light rays that bounce off the curved surface of a concave mirror and then meet a single point ( focal point).
concave lens bends light rays away from the center
Because the light rays never meet, a concave lens can produce only a virtual image.
spread out
When they are entering a concave lens they are refracted and bend away from each other.
When they are entering a concave lens they are refracted and bend away from each other.
The difference between the two is that once the light passes through the concave lens it diverges, and the rays are refracted outward, and never meet a focal point. Then there is the parallel light rays that bounce off the curved surface of a concave mirror and then meet a single point ( focal point).
concave lens bends light rays away from the center
Concave lens would diverge the rays.
Because the light rays never meet, a concave lens can produce only a virtual image.
Light rays converge as well as diverge. it depends upon the type of lens or mirror you pass it through. A concave lens or a convex mirror diverges the light whereas a convex lens or a concave mirror converges the light rays!
it spreads light rays apart,or it is used in a camera lens.
A convex lens is wider at the edges than it is in the center. Therefore, it is a converging lens.
a concave lens diverges the light ray travelling in a straight parallel path.
It depends on the lens. Assuming parallel rays entering the lens: Convex lens - they converge, Concave lens - they dinverge.