Flashcards on Light - Reflection and Refraction

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What is reflection of light?

Reflection of light is the bouncing back of light when it strikes the surface of an object and does not pass through it.

What is refraction of light?

Refraction of light is the bending of light when it passes from one transparent medium to another with different optical density.

State the law of reflection.

The law of reflection states that the angle of incidence is equal to the angle of reflection.

What is the normal in the context of reflection and refraction?

The normal is an imaginary line perpendicular to the surface at the point of incidence or refraction.

How does a mirror produce an image?

A mirror produces an image by reflecting light rays that reach its surface, obeying the laws of reflection.

What are the types of mirrors?

The types of mirrors are concave (converging) and convex (diverging) mirrors.

What are the characteristics of an image formed by a plane mirror?

The characteristics of an image formed by a plane mirror are that it is virtual, upright, of the same size as the object, and located behind the mirror.

What is the difference between regular and diffuse reflection?

Regular reflection occurs when light waves strike a smooth surface and reflect in a single direction, while diffuse reflection occurs when light waves strike a rough surface and reflect in many different directions.

Explain the phenomenon of total internal reflection.

Total internal reflection occurs when light travels from a denser medium to a less dense medium and the angle of incidence is greater than the critical angle, causing all the light to be reflected back into the denser medium.

What is the refractive index of a medium?

The refractive index of a medium is the ratio of the speed of light in vacuum to the speed of light in that medium.

What is the formula for calculating the speed of light in a medium?

The formula for calculating the speed of light in a medium is v = c / n, where v is the speed of light in the medium, c is the speed of light in vacuum, and n is the refractive index of the medium.

What is the critical angle of a medium?

The critical angle of a medium is the angle of incidence that produces an angle of refraction of 90 degrees, causing the refracted ray to lie along the surface of the medium.

What is the phenomenon of dispersion?

Dispersion is the splitting of white light into its constituent colors (wavelengths) when it passes through a prism or a glass prism-like structure.

What are the colors of the visible spectrum in order?

The colors of the visible spectrum in order are: red, orange, yellow, green, blue, indigo, and violet (ROYGBIV).

Provide an example of a convex lens.

A magnifying glass is an example of a convex lens.

What is the focal length of a lens?

The focal length of a lens is the distance between the optical center of the lens and its principal focus.

What is reflection of light?

Reflection of light is the bouncing back of light when it strikes the surface of an object and does not pass through it.

What is refraction of light?

Refraction of light is the bending of light when it passes from one transparent medium to another with different optical density.

State the law of reflection.

The law of reflection states that the angle of incidence is equal to the angle of reflection.

What is the normal in the context of reflection and refraction?

The normal is an imaginary line perpendicular to the surface at the point of incidence or refraction.

How does a mirror produce an image?

A mirror produces an image by reflecting light rays that reach its surface, obeying the laws of reflection.

What are the types of mirrors?

The types of mirrors are concave (converging) and convex (diverging) mirrors.

What are the characteristics of an image formed by a plane mirror?

The characteristics of an image formed by a plane mirror are that it is virtual, upright, of the same size as the object, and located behind the mirror.

What is the difference between regular and diffuse reflection?

Regular reflection occurs when light waves strike a smooth surface and reflect in a single direction, while diffuse reflection occurs when light waves strike a rough surface and reflect in many different directions.

Explain the phenomenon of total internal reflection.

Total internal reflection occurs when light travels from a denser medium to a less dense medium and the angle of incidence is greater than the critical angle, causing all the light to be reflected back into the denser medium.

What is the refractive index of a medium?

The refractive index of a medium is the ratio of the speed of light in vacuum to the speed of light in that medium.

What is the formula for calculating the speed of light in a medium?

The formula for calculating the speed of light in a medium is v = c / n, where v is the speed of light in the medium, c is the speed of light in vacuum, and n is the refractive index of the medium.

What is the critical angle of a medium?

The critical angle of a medium is the angle of incidence that produces an angle of refraction of 90 degrees, causing the refracted ray to lie along the surface of the medium.

What is the phenomenon of dispersion?

Dispersion is the splitting of white light into its constituent colors (wavelengths) when it passes through a prism or a glass prism-like structure.

What are the colors of the visible spectrum in order?

The colors of the visible spectrum in order are: red, orange, yellow, green, blue, indigo, and violet (ROYGBIV).

Provide an example of a convex lens.

A magnifying glass is an example of a convex lens.

What is the focal length of a lens?

The focal length of a lens is the distance between the optical center of the lens and its principal focus.

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