Ch 13 sound (science) keywords
Ch–13 Light Keywords / Homework Incident Ray: The light ray which strikes any surface is called the incident ray. Reflected Ray: The ray that comes back from the surface after reflection is known as the reflected ray. Normal: A line making an angle of 90° to the line representing the mirror at the point where the incident ray strikes the mirror. This line is known as the normal to the reflecting surface. Angle of Incidence: The angle between the normal and the incident ray is called the angle of incidence. Angle of Reflection: The angle between the normal and the reflected ray is known as the angle of reflection. Lateral Inversion: In the image formed by a mirror, the left of the object appears on the right and the right appears on the left. This is known as lateral inversion. Diffused or Irregular Reflection: When all the parallel rays reflected from a rough or irregular surface are not parallel, the reflection is known as diffused or irregular reflection. Regular Reflection: Ref...