I believe the answer is the second option.
Answer:
f = 409 Hz
Explanation:
We have,
Length of the open organ pipe, l = 0.29 m
Frequency of vibration of second overtone,
It is required to find the fundamental frequency of the pipe. For the open organ pipe, the frequency of second overtone is given by :
v is speed of sound
Let f is the fundamental frequency. It is given by :
The relation between f and f₂ can be written as :
So, the fundamental frequency of the pipe is 409 Hz.
When light passes from rarer medium to denser medium, its speed decreases. Hence, light is refracted when it passes from air to water.
It would be alto. I hope that is one of your answers.
The rock will sink because the rock is denser than the water