Laws of Reflection
Physics ⇒ Light and Optics
Laws of Reflection starts at 7 and continues till grade 12.
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See sample questions for grade 7
A light ray strikes a mirror at an angle of 20° to the normal. What is the total angle between the incident and reflected rays?
A ray of light hits a plane mirror at an angle of 45° to the normal. What is the angle between the incident ray and the reflected ray?
A ray of light strikes a mirror at an angle of 35° to the normal. What is the angle between the incident ray and the mirror surface?
A student shines a torch at a mirror and measures the angle of incidence as 25°. What should the angle of reflection be?
Describe what happens to the direction of a light ray when it strikes a mirror at an angle.
Describe what is meant by the 'normal' in the context of reflection.
Explain the difference between regular and irregular reflection.
Explain why the angle of incidence is always measured from the normal and not from the surface.
Explain why you can see your reflection in a calm lake but not in rough water.
If a light ray is incident at 15° to the normal, what is the angle of reflection?
If a light ray strikes a mirror at an angle of 30° to the normal, what is the angle of reflection?
If the angle between the incident ray and the reflected ray is 120°, what is the angle of incidence?
If the angle between the incident ray and the reflected ray is 80°, what is the angle of incidence?
If the angle of incidence is 0°, what will be the angle of reflection?
State the two laws of reflection.
What is the angle of incidence if a ray of light strikes a mirror at 70° to the surface?
What is the angle of incidence if the angle between the incident ray and the mirror surface is 60°?
What is the law of reflection?
What is the name given to the ray that bounces off a reflective surface?
