A.P. Inventory – Test 6 – Waves, Sound, and Optics
Waves and Sound

1. Sound occurs at this part of a standing wave?

2. Sound DOES NOT occur at this part of a standing wave?

3. For an open pipe, sound occurs every ____________ wavelength?

4. For a closed pipe, sound occurs every ____________ wavelength?

5. Open pipes play ________ harmonics.

6. Closed pipes play only ______ harmonics.

7. Suppose the fundamental frequency of a resonating sound wave in a pipe is 325 Hz, What would be the next highest frequency that emits a sound in an open pipe? Closed pipe?
 
 

8. If a police siren emits a sound at a frequency of 60 Hz, as it moves towards you it appears that the frequency does this?

As the car moves away?

9. What do we call the phenomenon in #8?
 

10.  For a wave traveling on a string, the velocity is directly proportional to?

Inversely proportional to?


Optics
On the Horizontal Line below, draw what would happen to an incident ray in air striking water and then refracting.
 
 
 
 


 

 

What does “n” stand for?

“n” is a ratio of what 2 things?

What happens to light when it enters a medium of low “n” to a medium of high “n”?

ALL ANGLES when dealing with refraction MUST be measured from the?

If a light ray comes up from a medium of high “n” into a medium of low “n”, yet the ray does not refract you have said to have exceeded the what?
 

After you exceeded the answer above you have Total ___________ _____________.
 

A ray of light comes up from water into air. The incident angle in water is 27 degrees. Calculate the refracted angle in air.
 
 
 
 
 

A ray of light travels from diamond ( n = 2.36) into air. Calculate the minimum angle that would result in a refracted ray.
 
 
 
 

What is the sign of the image distance if it located in the following places?

Same side of a Converging mirror as the object?

Opposite side of a Converging mirror as the object?

Same side of a Converging lens as the object?

Opposite side of a Converging lens as the object?

What is the sign of the focal point for a Diverging Lens or Mirror?

What kind of image will you have if the object is inside the focal point of a converging lens or mirror?

What kind of image will you have from a diverging lens or mirror?

An object is placed 40 cm in front of a diverging lens with a focal length of 13 cm.
a) Calculate the image distance
b) Calculate the magnification
 
 
 

What are the characteristics of the image mentioned above?
 
 
 

Diffraction

Bright fringes occur at every _______ wavelength.

Dark Fringes occur at every _______ wavelength.

The distance one ray travels more than the other is known as the?

Bright fringes are a result of what type of interference?

Dark fringes are a result of what type of interference?

“d” represents:

“L” represents

“y” represents

“m” represents

The bright central has what order?

The dark fringe on each side of the bright central has what order?

If a diffraction grating has 15,450 lines per cm, what is the distance between the slits?
 
 
 

What is the path difference at the 4th order dark fringe?