The figure shows the regions of the electromagnetic spectrum. Which of these statements is true? A. X-rays are shorter than visible light waves.
B. Ultraviolet waves are longer than radio waves.
C. Visible light waves are longer than microwaves.
D. Infrared waves are shorter than ultraviolet waves.

A. X-rays are shorter than visible light waves.

Explanation:

The correct choice from the given options is that x-rays are shorter than visible light waves.

X - rays falls into the category of short-wave radiations because they have short wavelength

Only gamma rays are shorter than x-rays. X-rays are highly energetic in nature and they have very high frequency. So, they have very short waves. The other choices are not correct.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.