What are the cartesian sign convention used in spherical mirror?
Answers
Answer:
Step-by-step explanation:
Sign Convention for Spherical Mirrors (Concave and Convex Mirrors)
Distances are to be measured from the pole (vertex) of the mirror marked by point V in the figure.
Distances measured along the direction of the incident ray are positive. Distance measured opposite the direction of the incident ray are negative.
Distances measured above the principal axis are positive. Distances measured below the principal axis are negative.
The above convention applies to both concave and convex mirrors and spherical mirrors.
Answer:
Cartesian sign convention used for spherical mirrors.
Explanation:
NOTE: Refer to the attachment for the diagram.
1. Cartesian was a mathematician.
2. He made the concept of Cartesian plane. It is also used in study of mirrors and lenses.
3. According to the Cartesian sign convention, the pole ( P ) of a spherical mirror is taken as the origin and the principal axis is taken as X-axis of the coordinate system.
4. The object is always placed on the left of the mirror.
5. All distances parallel to the principal axis are measured from the pole of the mirror.
6. All distances measured to the right of the origin ( pole ) are taken as positive.
7. All distances measured to the left of the origin ( pole ) are taken as negative.
8. Distances measured perpendicular to and above the principal axis are taken as positive.
9. Distances measured perpendicular to and below the principal axis are taken as negative.
10. The focal length of a convex mirror is positive.
11. The focal length of a concave mirror is negative.
