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Darina [25.2K]
3 years ago
14

Two sound waves W1 and W2, of the same wavelength interfere destructively at point P. The waves originate from two in phase spea

kers. W1 travels 36m and W2 travels 24m before reaching point P. Which of the following values could be the wave length of the sound waves?
a. 24m
b. 12m
c. 6m
d. 4m
Physics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

<em>a. 24 m</em>

<em></em>

Explanation:

Destructive interference occurs when two waves arrive at a point, out of phase. In a completely destructive interference, the two waves cancel out, but in a partially destructive interference, they produce a wave with a time varying amplitude, but maintain a wavelength the wavelength of one of the original waves. Since the two waves does not undergo complete destructive interference, then the possible value of the new wave formed can only be 24 m, from the options given.

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Newton's second law of motion:

F = ma

Kilogram (mass) is a basic unit, and accelerations unit can be found using the equation:

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Analysing the units:

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Therefore, the unit of force is:

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Pressure is given by the equation:

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Dividing the aforementioned unit of force by the unit of area:

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Work is given by the equation:

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Knowing displacement's (x) unit is m:

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The sum of the kinetic and potential energies of a system of objects is conserved only when no external force acts on the objects.

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