Light Reflection Quiz

Light Reflection

• Law of Reflection: The angle of incidence (θi) is equal to the angle of reflection (θr).
• Mirror Equation: 1/f = 1/do + 1/di, where f is the focal length, do is the distance between the mirror and the object, and di is the distance between the mirror and the image.
• Types of Reflection:
  • Specular Reflection: Mirror-like reflection, where the reflected light is parallel to the incident light.
  • Diffuse Reflection: Scattered reflection, where the reflected light is scattered in different directions.

Light Refraction

• Snell's Law: n1sin(θ1) = n2sin(θ2), where n1 and n2 are the refractive indices of the two media, and θ1 and θ2 are the angles of incidence and refraction.
• Refraction: The bending of light as it passes from one medium to another.
• Total Internal Reflection: When light hits a medium with a lower refractive index at a shallow angle, it is completely reflected back into the original medium.
• Critical Angle: The angle of incidence above which total internal reflection occurs.
• Refraction through a Prism: The bending of light as it passes through a prism, which can separate white light into its component colors (dispersion).

Important Concepts

• Refractive Index: A measure of how much a medium bends light, dependent on the speed of light in the medium.
• Optical Density: A measure of how much a medium slows down light, related to the refractive index.
• Dispersion: The spreading of light into its component colors, due to different wavelengths being refracted at different angles.

Light Reflection

• Angle of Incidence equals Angle of Reflection: θi = θr, a fundamental principle of reflection.
• Mirror Equation: A mathematical formula to calculate the focal length of a mirror, given by 1/f = 1/do + 1/di.
• Types of Reflection:
  • Specular Reflection: A mirror-like reflection where incident light is parallel to reflected light.
  • Diffuse Reflection: A scattered reflection where incident light is reflected in different directions.

Light Refraction

• Snell's Law: A mathematical formula describing the relationship between refractive indices and angles of incidence and refraction, given by n1sin(θ1) = n2sin(θ2).
• Refraction: The bending of light as it passes from one medium to another, caused by a change in speed.
• Total Internal Reflection: A phenomenon where light is completely reflected back into the original medium, occurring when the angle of incidence is shallow and the refractive index decreases.
• Critical Angle: The minimum angle of incidence required for total internal reflection to occur.
• Refraction through a Prism: The separation of white light into its component colors (dispersion) due to different wavelengths being refracted at different angles.

Important Concepts

• Refractive Index: A measure of how much a medium bends light, dependent on the speed of light in the medium.
• Optical Density: A measure of how much a medium slows down light, related to the refractive index.
• Dispersion: The spreading of light into its component colors, caused by different wavelengths being refracted at different angles.

Test your understanding of light reflection concepts, including the law of reflection, mirror equation, and types of reflection such as specular and diffuse reflection.