Question

use with textbook pages 304 to 305
plane, concave, and convex mirrors
vocabulary
centre of curvature
concave
convex
focal point
focal length
incidence
incident ray
normal
plane
principal axis
real
reflected ray
reflection
virtual
use the terms in the vocabulary box to fill in the blanks. you can use each term more than once. you will not need to use every term.

1. according to the law of reflection, the angle of ____ and the angle of ____ are equal.
2. the ______ is the light ray that travels toward a reflective - surface.
3. the ______ is the line that is perpendicular to the surface.
4. the reflected ray and the incident ray are on opposite sides of the ______.
5. the image formed in a plane mirror is a ______ image.
6. a ______ mirror curves inward at the centre.
7. a ______ mirror bulges out at the centre.
8. a ______ mirror forms images that are smaller than the object.
9. a line that is normal to the centre of a spherical mirror and passes through the centre of curvature is called the ______.
10. the ______ is the distance between the focal point and the mirror.
11. the focal point is located halfway between the ____ and the ____.
12. a concave mirror forms a ______ image when the object is between the focal point and the mirror.
13. a concave mirror forms a ______ image when the object is between the centre of curvature and the focal point.

Explanation:

1. According to the law of reflection, the angle of incidence and the angle of reflection are equal. The incident ray is the light - ray that travels towards a reflective surface. The normal is the line that is perpendicular to the surface. The reflected ray and the incident ray are on opposite sides of the normal. The image formed in a plane mirror is a virtual image. A concave mirror curves inward at the centre. A convex mirror bulges out at the centre. A plane mirror forms images that are identical to the objects. A line that is normal to the centre of a spherical mirror and passes through the centre of curvature is called the principal axis. The focal length is the distance between the focal point and the mirror. The focal point is located halfway between the centre of curvature and the mirror. A concave mirror forms a real image when the object is between the focal point and the mirror. A convex mirror forms a virtual image when the object is between the centre of curvature and the focal point.

Answer:

1. incidence; reflection
2. incident ray
3. normal
4. normal
5. virtual
6. concave
7. convex
8. plane
9. principal axis
10. focal length
11. centre of curvature; mirror
12. real
13. virtual