Optics Test Review

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Questions and Answers

What occurs when a ray of light travels from a slow to fast medium and exceeds the critical angle?

It exits the medium entirely.

It refracts into the fast medium.

It continues straight without bending.

It reflects back into the slow medium. (correct)

What is the angle of incidence if the angle between the incident ray and the normal is given as 76 degrees?

76 degrees (correct)

14 degrees

0 degrees

90 degrees

Which combination of light colors would produce white light when overlapped?

Cyan, magenta, and yellow

Red, blue, and cyan

Red, yellow, and blue

Red, green, and blue (correct)

What characteristic would a green object exhibit when viewed through a yellow filter?

It appears black. Signup and view all the answers

What is the complementary color to the primary light color red?

Green Signup and view all the answers

What term describes the angle between the incident ray and the normal?

Angle of incidence Signup and view all the answers

Which term refers to a type of mirror that produces a virtual image smaller than the object?

Convex mirror Signup and view all the answers

What type of reflection occurs when light hits an irregular surface?

Diffuse reflection Signup and view all the answers

Which term refers to a source that emits its own light?

Luminous Signup and view all the answers

What does the focal length describe in relation to a mirror?

The distance from the mirror to the focal point Signup and view all the answers

What is bioluminescence?

Light produced by chemical reactions in living organisms Signup and view all the answers

Which term accurately describes a smooth, flat reflecting surface?

Plane mirror Signup and view all the answers

What is the angle between the reflected ray and the normal called?

Angle of reflection Signup and view all the answers

What is the correct order of the parts of the electromagnetic spectrum starting with the least energetic?

Radio waves, microwaves, infrared, visible light, UV light, X-rays, gamma rays Signup and view all the answers

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

Virtual, upright, small, located in front of the mirror Signup and view all the answers

What happens to light when it travels from a faster medium to a slower medium?

It bends towards the normal Signup and view all the answers

Which of the following correctly lists the seven colors in the visible spectrum of white light?

Red, orange, yellow, green, blue, indigo, violet Signup and view all the answers

Under what condition will light totally internally reflect?

When it travels from a faster medium to a slower medium and hits at an angle greater than the critical angle Signup and view all the answers

Which type of electromagnetic wave is primarily used in telecommunications?

Radio waves Signup and view all the answers

What is the angle of incidence in a reflection scenario?

Equal to the angle of reflection Signup and view all the answers

Why are convex mirrors commonly placed on sharp turns in parking garages?

To allow for a larger field of view and a small virtual image Signup and view all the answers

Study Notes

Optics Test Review

Reflection:
- The angle of incidence equals the angle of reflection
- The incident ray, reflected ray, and normal are all on the same plane.
Electromagnetic Spectrum (Least to Most Energetic):
- Radio waves
- Microwaves
- Infrared waves
- Visible light
- Ultraviolet light
- X-rays
- Gamma rays
Electromagnetic Waves and Their Applications:
- X-rays: Medical imaging
- Ultraviolet light: Vitamin D
- Radio waves: Telecommunication, TV remote controls, radar
- Infrared light: Radar, theatre/concert effects, medical imaging
- Microwaves: TV remote controls, radar, theatre/concert effects
- Gamma rays: Cancer treatment, medical imaging
- Visible light: Theatre/concert effects, medical imaging
Primary and Secondary Colors:
- Primary colors: Red, blue, green
- Secondary colors: Cyan, yellow, magenta
Visible Spectrum Colors:
- Red, orange, yellow, green, blue, indigo, violet
Light Bending (Refraction):
- Light bends towards the normal when traveling from a faster medium to a slower medium
- Light bends away from the normal when traveling from a slower medium to a faster medium
Total Internal Reflection:
- Occurs when light travels from a slow medium to a fast medium and bends past the critical angle, reflecting back into the slow medium
Concave Mirrors:
- Image characteristics depend on the object's position relative to the focal point
- Upright image: Located between focal point and mirror
- Inverted image: Located beyond the focal point, but not on the focal point
Convex Mirrors:
- Image characteristics are always the same, regardless of the object's position
- Upright
- Smaller than object
- Virtual
- Located behind the mirror
Convex Mirror Applications:
- Used in parking garages for a wide field of view and creating small virtual images
Lenses:
- Ray diagrams will show the image characteristics (Size, Attitude, Location and Type).
Color Mixing:
- Overlapping red, green, and blue light produces white light.
- To make green appear black, red light should be used.
- A green filter followed by a yellow filter with white light would produce yellow.
- Red's complementary color is cyan.

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Description

Prepare for your optics exam with this comprehensive review quiz. Covering topics such as reflection, the electromagnetic spectrum, and color theory, this quiz will help reinforce your understanding of optics principles and their applications. Test your knowledge on how different types of electromagnetic waves interact with the world around us.