Explanation :
A mirror works on the principle of reflection. This law states that :
- Angle of the incidence is equal to the angle of reflection.
- The incident ray, the reflected ray, the normal and the point of incidence all lie in the same plane.
Hence, the correct option is (B).
A lens works on the principle of refraction of light. This law states that :
- [tex]\dfrac{sin\ i}{sin\ r}=constant[/tex] where sin i is the sine of angle of incidence and sin r is the sine of angle of refraction.
- The incident, reflected, normal all lie in the same plane.
Hence, the correct option is (A).
