What happens after refraction when 4 a A ray of light parallel to principal axis passes through a concave lens?
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. Therefore, the image formed is: At infinity, Real and inverted, highly enlarged.
What happens when a ray of light parallel to the principal axis passes through a concave lens?
When the parallel rays of light pass through a concave lens to the principal axis, it deviates from its focal point and refracts the light rays. Due to this reason, it is called the Concave or Diverging lens. An incident light ray parallel to the principal axis of a concave lens, passes through it and diverges.
What happens when parallel rays of light falls on a curved reflecting surface?
What happens when a parallel beam of light falls on a curved reflecting surface? After reflection it will pass through focus and form a real , inverted and highly diminished image there.
What happens when light falls on a polished or a shiny surface?
When light falls on the shiny surface of an object, it sends back the light. This process is called reflection. The objects having shiny or polished surface reflects more light compared to the objects having a dull or unpolished surface.
What happens when parallel beams are light?
Parallel beam of light falls on a curved reflecting surface: If the surface of the mirror is curved and different parts of a light beam will fall on it at different angles of incidence. So, they will be reflected in different directions. Both angle incidence and reflection angle is equal.
What are the parts of spherical mirror?
Basic Terms Related to Image Formation by Spherical Mirror
- Centre of curvature (C): Centre of the sphere of which the mirror is a part.
- Radius of curvature (R): Radius of the sphere of which the mirror is a part.
- Pole (P/O): Geometric centre of the spherical surface of the mirror.
- Principal axis: Straight line joining the pole of the mirror to its centre of curvature.
What are the 2 kinds of spherical mirror?
There are two types of spherical mirrors: concave and convex mirror.
What is Centre of mirror called?
Geometric center of a mirror is the point in the center of the mirror where the arbitrary principal axis is assumed to pass through the mirror. The geometric center of the mirror is also called Vertex.
What is the name given to the Centre of a mirror?
The vertex is the geometric center of the mirror. Midway between the vertex and the center of curvature is a point known as the focal point; the focal point is denoted by the letter F in the diagram below.
What is the point that is in the middle of the reflective surface of the mirror?
Pole is a point in the center of the reflecting surface of a spherical mirror which lies on the surface of the mirror. Also it is the midpoint of the aperture of the spherical mirror and usually represented by the letter P.
What are the uses of concave mirror in our daily life?
Uses Of Concave Mirror
- Shaving mirrors.
- Head mirrors.
- Ophthalmoscope.
- Astronomical telescopes.
- Headlights.
- Solar furnaces.