Physics, 20.09.2019 02:00 11036

Astanding wave occurs when two waves are moving in the same direction interfere in the same medium true or false

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I believe the correct answer would be false. Two waves that are moving in the same direction interfering in the same medium is called interference. A standing wave is a type of wave where each point on its axis is associated to a constant amplitude. This is also known as a stationary wave. The occurence of such wave was first recorded by Michael Faraday where he saw waves on the surface of a particular liquid in container that is vibrating. This happens because the medium is in motion such that it is opposite in direction to the wave where it can give rise to a stationary medium which is a result of the interference between the waves that are traveling in directions that are opposite.

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the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

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force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

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Astanding wave occurs when two waves are moving in the same direction interfere in the same medium t...