Refraction occurs for both sound and light. When refraction occurs there is a change in
1) frequency.
2) wavelength.
3) speed.
4) all of the above.
When sound travels faster near the ground than above, bending of sound tends to be
5) upward.
6) downward.
7) neither of these.
Question 2
A V-shaped bow wave is produced when a boat moves
1) more slowly than the velocity of waves in the water.
2) as fast as the waves in the water.
3) faster than the velocity of waves in the water.
4) at any speed, slower or faster than the water waves.
Which bow wave corresponds to the faster-moving boat?
5) I
6) II
Color mixtures of refracted light—additive process.
Chris Burden, Urban Light.
The physician uses percussion—tapping—to detect sound or vibration.
If a graph has the following x-intercepts, which value of x is the instantaneous rate of change ...
Light Green Eye Color
Events in human fertilization. The light micrograph shows a fertilized human oocyte.