Light Reflection and Refraction Quiz

What is the law of reflection?

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

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

• The angle of incidence is less than the angle of reflection.

• The angle of incidence is greater than the angle of reflection.

What is the angle of incidence for a ray of light striking a plane mirror?

• 45 degrees

• Equal to the angle of reflection

• 180 degrees

• 90 degrees

What is the angle of reflection for a ray of light striking a plane mirror?

• Equal to the angle of incidence

• Half the angle of incidence

• Twice the angle of incidence

• Opposite of the angle of incidence

How does a plane mirror form an image?

• Real image is formed by the refraction of light rays

• No image is formed by the reflection of light rays

• Virtual image is formed by the reflection of light rays

• The image formed is upside down

What is the formula for Snell's Law?

• n1 / sin(theta1) = n2 / sin(theta2)

• n1 + sin(theta1) = n2 + sin(theta2)

• n1 * sin(theta1) = n2 * sin(theta2)

• n1 - sin(theta1) = n2 - sin(theta2)

What happens to the speed of light when it enters a medium with a higher refractive index?

• Speed decreases

• Speed becomes zero

• Speed remains the same

• Speed increases

What is the critical angle in the context of refraction?

• Angle of reflection that results in an angle of refraction of 90 degrees

• Angle of refraction that results in an angle of incidence of 90 degrees

• Angle of incidence that results in an angle of refraction of 90 degrees

• Angle of incidence that results in an angle of refraction of 45 degrees

What is total internal reflection?

• Partial reflection of light at the boundary between two mediums

• Complete reflection of light at the boundary between two mediums

• Reflection of sound at the boundary between two mediums

• Reflection of light at the boundary between two mediums with refraction

How does the bending of light occur when it enters a medium with a different refractive index?

• It splits into multiple colors

• It changes speed and direction, causing the bending of light.

• It becomes invisible

• It disappears completely

Explain the concept of optical density in the context of refraction.

• The concept of optical density in the context of refraction refers to the measure of how much a material can bend light in a straight line.

• The concept of optical density in the context of refraction refers to the measure of how much a material can speed up the speed of light.

• The concept of optical density in the context of refraction refers to the measure of how much a material can slow down the speed of light.

• Optical density in the context of refraction is the measure of how transparent a material is to light.