Last Updated On 01-06-2023 - By Jeesha Sara
A musician suing an open flute of length 50 cm produces second harmonic sound waves. A persons runs towards the musician from another end of a hall at a speed of 10km/h. If the wave speed is 330 m/s, the frequency heard by the running person shall be close to
|
a. |
753 Hz |
b. |
500 Hz |
|
|
333 Hz |
d. |
666 Hz |
Question ID - 50119 :- A musician suing an open flute of length 50 cm produces second harmonic sound waves. A persons runs towards the musician from another end of a hall at a speed of 10km/h. If the wave speed is 330 m/s, the frequency heard by the running person shall be close to
a.
753 Hz
b.
500 Hz
333 Hz
d.
666 Hz
A musician suing an open flute of length 50 cm produces second harmonic sound waves. A persons runs towards the musician from another end of a hall at a speed of 10km/h. If the wave speed is 330 m/s, the frequency heard by the running person shall be close to
|
a. |
753 Hz |
b. |
500 Hz |
|
|
333 Hz |
d. |
666 Hz |
Frequency of the sound produced by flute,
f = 2
Hz
Velocity of observer, v0 = 10×
∴ Frequency detected by observer, f =
∴ f= 
= 335.56×2 = 671.12
∴ closer answer is (d)
Next Question :
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An equilateral triangle is described on the diagonal of a square. What is the ratio of the area of the triangle to that of the square? |
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