If there aren't any road improvements needed, such as adding turn lanes, then a complete traffic signal system for a typical four-way intersection will cost about $250,000 to $300,000. When additional costs like control equipment, project inspection, and design are taken into account the cost edges closer to $300,000.f there aren't any road improvements needed, such as adding turn lanes, then a complete traffic signal system for a typical four-way intersection will cost about $250,000 to $300,000. When additional costs like control equipment, project inspection, and design are taken into account the cost edges closer to $300,000.
Magnification. Magnification produced by a spherical mirror gives the relative extent to which the image of an object is magnified with respect to the object size. It is expressed as the ratio of the height of the image to the height of the object. It is usually represented by the letter m. If h is the height of the object and hâ² is the height of the image, then the magnification m produced by a spherical mirror is given by. The magnification m is also related to the object distance (u) and image distance (v). It can be expressed as:
c. virtual and magnification equal to one. b. real and magnification less than one d. real and magnification equal to one. ____ 3. When the reflection of an object is seen in a plane mirror, the image is: a. real and upright. c. virtual and upright. b. real and inverted. d. virtual and inverted. ____ 4. When the reflection of an object is seen in a concave mirror the image will: a. always be real. c. may be either real or virtual. b. always be virtual. d. will always be enlarged. ____ 5. When the reflection of an object is seen in a convex mirror the image will: a. always be real. c. may be either real or virtual.