Answer:
Hz
Explanation:
We know that
1 cm = 0.01 m
= Length of the human ear canal = 2.5 cm = 0.025 m
= Speed of sound = 340 ms⁻¹
= First resonant frequency
The human ear canal behaves as a closed pipe and for a closed pipe, nth resonant frequency is given as
for first resonant frequency, we have n = 1
Inserting the values
Hz
Practically yes
So
If mass is more output may come less so it affects the efficiency practically
But thepritically it doesn't
It should be C. If the object is denser than the fluid, it will sink. If it isn't, it will float
True would be the Correct answer
