When the light is incident along the normal on the mirror, which of the following statements is true: Class 8
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When the light is incident along the normal on the mirror, which of the following statements is true: Class 8
When the light is incident along the normal on the mirror, which of the following statements is true: Class 8
(i) Angle of incidence is 90°
(ii) Angle of incidence is 0°
(iii) Angle of reflection is 90°
(iv) No reflection of light takes place in this case
Answer:
(ii) When light hits a surface at a 90° angle (perpendicular), it is considered to be incident normally.
Angle of incidence = Angle of reflection: In reflection, the angle of the reflected light is always equal to the angle of the incident light. Since the light is hitting the mirror normally (at a 0° angle), the reflected light will also be at a 0° angle.