Light and Optics Test Review Sheet
Key Terms: For key terms, please define each of the following below. For equations, list the variables
and describe what the variables mean with the correct units.
Waves:
-
Longitudinal wave
Transverse Wave
Mechanical Wave
Sound Waves
Doppler Effect
Speed of Light
Wavelength
Frequency
𝑣 = 𝑓𝜆
𝑐 = 𝑓𝜆
Reflection & Refraction:
-
Plain Flat Mirror
Spherical Mirror
Convex Mirror
Concave Mirror
Real Image
Virtual Image
Focal Length
Center of Curvature
-
1
𝑝
-
Magnification
-
𝑀=
-
𝑀=−
-
Refraction
Snell’s Law
Converging Lens
Diverging Lens
1
1
+𝑞 =𝑓
ℎ′
ℎ
𝑞
𝑝
Review Questions: Please answer the following questions below using complete sentences and showing
all work for the appropriate questions.
1. An electromagnetic wave has a wavelength of 25m, what is the frequency of the wave?
2. If the period of a sound wave doubles, what does that do to the frequency?
Light and Optics Test Review Sheet
3. What is the law of reflection?
4. What is Doppler Effect?
5. What are the rules for drawing ray diagrams for convex and concave lens?
6. What happens to light that passes through a converging lens?
7. Draw a ray diagram for an object
outside the center of curvature
(C) in front of a concave mirror.
8. If the focal length of a certain convex mirror is -5cm and an object is placed 10cm in front of the
mirror, what is the image distance? What is the magnification? If the object height was 1cm,
what is the image height?
9. A ray of light enters a piece of glass from water at an angle of 30 degrees to the normal. The
index of refraction for glass is 1.53 and water is 1.33, what is the angle of refraction?
10. An object is 6m tall and a virtual image of 24m tall is seen on a concave mirror. If the object
distance is 5cm, what is the focal length of the mirror?
11. An object is placed 12.5cm in front of a diverging lens which has a focal length of 10.0cm. Find
the image distance and its magnification.