Q. During the detection of the cones by the thin strip of film which one of the following statements is appropriate for the cones and the films? (Solved)
1. cones are parallel to the strip of the films
2. cones are perpendicular to the strip of the films
3. cones intersects the strip of the films
4. cones are vertically placed over the strip of the film
- c. cones intersects the strip of the films