If an incident ray passes through the centre of curvature of a spheric...
An incident ray which passes through the centre of curvature C of the mirror is reflected back along it's own path ( since it is normally incident on the mirror) .
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If an incident ray passes through the centre of curvature of a spheric...
Because that rays is always perpendicular to the mirror so it's retrace
If an incident ray passes through the centre of curvature of a spheric...
Explanation:
When an incident ray passes through the center of curvature of a spherical mirror, the reflected ray retraces its path. This can be explained using the laws of reflection.
Law of Reflection:
According to the law of reflection, the angle of incidence is equal to the angle of reflection. The incident ray, the normal to the surface at the point of incidence, and the reflected ray all lie in the same plane.
When the incident ray passes through the center of curvature:
1. Incident Ray:
The incident ray is the ray of light that travels from a source of light towards the mirror. When the incident ray passes through the center of curvature, it is incident perpendicularly to the mirror.
2. Normal:
The normal to the surface of the mirror is a line drawn perpendicular to the mirror at the point of incidence. Since the incident ray is perpendicular to the mirror, it coincides with the normal.
3. Reflected Ray:
According to the law of reflection, the angle of incidence is equal to the angle of reflection. In this case, since the incident ray is perpendicular to the mirror, the angle of incidence is 0 degrees. Therefore, the angle of reflection is also 0 degrees.
4. Path of the Reflected Ray:
Since the angle of reflection is 0 degrees, the reflected ray retraces its path. It travels back along the incident ray.
Therefore, when an incident ray passes through the center of curvature of a spherical mirror, the reflected ray retraces its path. It does not pass through the pole or the focus, and it is not parallel to the principal axis.
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