Physics Quiz on Light and Reflection

What is the angle of incidence equal to in the law of reflection?

• Angle of refraction

• Angle of reflection

• Angle of deviation

• Angle of dispersion

What happens to light when it passes from air into water?

• It speeds up

• It bends towards the normal

• It bends away from the normal

• It reflects back

What is the term for the bending of light as it passes from one medium to another?

• Reflection

• Refraction

• Diffraction

• Dispersion

What is the critical angle in the context of total internal reflection?

• The angle of incidence at which refraction stops

• The angle of incidence at which reflection stops

• The angle of incidence at which light is totally internally reflected

• The angle of incidence at which light is partially reflected

What is the refractive index a measure of?

• The speed of light in a vacuum

• The bending of light in a medium

• The speed of light in a medium

• The reflection of light in a medium

What is the phenomenon called when light reflects back into the same medium?

• Refraction

• Total internal reflection

• Diffraction

• Dispersion

Which of the following is true about the angle of refraction?

• It is always equal to the angle of incidence

• It is always greater than the angle of incidence

• It is always less than the angle of incidence

• It depends on the refractive indices of the media

What is the purpose of using a glass block in refraction experiments?

• To reflect light

• To absorb light

• To slow down light

• To bend light

What is the effect of increasing the angle of incidence on the angle of refraction?

• It decreases the angle of refraction

• It increases the angle of refraction

• It has no effect on the angle of refraction

• It causes total internal reflection

What is the relationship between the speed of light in a medium and its refractive index?

• Directly proportional

• Inversely proportional

• No relationship

• Equal