The frequency of a wave is tripled, while the wave speed is held constant. What happens to the wavelength?

Physics

2 answers:

Mashcka [7]3 years ago

7 0

Wherever there are waves,

(the frequency) times (the wavelength) = the wave's speed

This says that the product of multiplying the frequency by the wavelength is always the same number. So if one of them gets multiplied by something, the other one immediately gets divided by the same thing, in order to keep their product from changing.

If the frequency is tripled, the wavelength must be divided by 3.

grigory [225]3 years ago

6 0

The wavelength decreases

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what is the distance moved by a particle moving along x axis if it starts from x=-7m goes upto x= -12m turns and stops at x=+34m

Marizza181 [45]

Answer: Trajectory=51m

Displacement=41m

Explanation:

Let's begin by stating clear that movement is the change of position of a body at a certain time. So, during this movement, the body will have a trajectory and a displacement, being both different:

The trajectory is the path followed by the body (is a scalar magnitude).

The displacement is the distance in a straight line between the initial and final position (is a vector magnitude).

According to this, in the description of the object placed at x= -7m on a number line and moving some 12m to the left and then to the right, stopping at x=34m; we are talking about the path followed by the object, hence its trajectory. So, 51 m is its trajectory.

But, if we talk about displacement, we have to draw a straight line between the initial position of the object (x=-7m) to its final position (x=+34m).

Now, being this an unidimensional problem, the displacement vector for this object is 41m.