Antara rajah sinar yang berikut, yang manakah tidak betul?
Answer : C
Guidelines to Draw Ray Diagrams for a Convex Lens
1. The ray parallel to the principal axis is refrcted through the focal point, F
2. A ray passing through the optical centre, C travels straight without bending
3. A ray passing the focal point, F is refracted parallel to the principal axis
4. Finally, point of intersection is the position of the image, I
Guidelines to Draw Ray Diagrams for a Concave Lens
1. The ray parallel to the principal axis is refracted and appears to come from the focal point,F
2. A ray passing through the optical centre, C travels straight without bending
3. Finally, point of intersection is the position of the image.