According to the first law of reflection, the incident ray, the reflected ray and the normal (at the point of incidence) all lie in the ____.

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Detailed Solution

According to the first law of reflection, the incident ray, the reflected ray and the normal (at the point of incidence) all lie in the same plane.
A light ray is reflected when it strikes a smooth polished surface and bounces back. Light rays that strike the surface are reflected. The ray that bounces back is known as the reflected ray. Two laws govern the process of reflection. The normal, incident and reflected rays all lie in the same plane, according to the first law, which is true at the point of incidence. In addition, the angle of incidence and angle of reflection is always equal, as stated by the second law of reflection.

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