1. |
How has the velocity of sounds in liquids and solids been determined? Upon what properties does the velocity of sound in a substance depend? |
2. |
What are the laws of the vibration of strings? A string is made to vibrate by means of a tuning fork kept vibrating by electricity, it breaks into three segments with a tension of 4lbs.; what weight will make it vibrate as a single segment? |
3. |
Describe and give illustrations of resonance and sympathy of vibration. |
4. |
How has the character of a compound tone, such as the note of a string, been determined? |
5. |
What are the chief arguments for the undulatory theory of light? |
6. |
Describe three different modes for comparing the intensities of two lights. |
7. |
Explain what is meant by the spherical abberation of a concave mirror. Show how an image is formed in such a mirror. |
8. |
Show by a diagram how a simple lens magnifies an object, and trace the course of the rays in a compound microscope. |
9. |
Draw diagrams showing the course of a solar ray and of a sodium ray passing through a prism. What is the difference between a yellow light produced by coloured glass and by burning sodium, when examined by a spectroscope? |
10. |
Give a general account of the phenomena of polarized light. Can sound be polarized? |