Answer: Nodes are produced at the water surface and antinodes are produced at the open end. When the frequency of waves in the air column becomes equal to the natural frequency of tuning fork, a loud sound is produced in the air column. It is the condition for resonance.
Explanation:
The answer is B. when he arrives at his first stop, because if he does this then he can get really good photos and remember them forever but if he waits to get to his favorite spot- well he never knows when that will be so then he may never get any photos.
hope this helps!!^^
