Understanding Reflection and Refraction

What is the Law of Reflection?

• The angle of incidence is equal to the angle of refraction.

• The angle of incidence is equal to the angle of reflection.

• The angle of reflection is always 90 degrees.

• The angle of incidence is always 45 degrees.

If a light ray hits a mirror at an angle of 30 degrees to the normal, what is the angle of reflection?

• 15 degrees

• 30 degrees

• 45 degrees

• 60 degrees

Which of the following surfaces is most likely to reflect light according to the Law of Reflection?

• A rough wooden table

• A smooth, shiny metal surface

• A piece of cloth

• A brick wall

What is the normal line in the context of reflection?

• A line parallel to the surface

• A line perpendicular to the surface

• A line at 45 degrees to the surface

• A line that bisects the angle of incidence

If a light ray strikes a mirror at an angle of 45 degrees to the normal, what will be the angle between the incident ray and the reflected ray?

• 45 degrees

• 90 degrees

• 135 degrees

• 180 degrees

Which of the following statements is true about the Law of Reflection?

• It only applies to light waves.

• It applies to all types of waves, including sound and water waves.

• It only applies to sound waves.

• It only applies to water waves.

What happens to the speed of light when it reflects off a surface?

• It increases.

• It decreases.

• It remains the same.

• It becomes zero.

In a periscope, how many mirrors are typically used to reflect light?

• One

• Two

• Three

• Four

Which of the following is an example of regular reflection?

• Light reflecting off a calm lake

• Light reflecting off a rough road

• Light scattering in fog

• Light passing through a glass window

What is the angle of incidence if the angle of reflection is 50 degrees?

• 25 degrees

• 50 degrees

• 75 degrees

• 100 degrees