Which one of the following statements about X-rays is not true?

The correct answer is option "3" 

Concept:

X-Rays work:

• They are produced when high-velocity electrons collide with the metal plates, thereby giving the energy as the X-Rays and themselves absorbed by the metal plate.
• The X-Ray beam travels through the air and comes in contact with the body tissues, and produces an image on a metal film.
• Soft tissue like organs and skin, cannot absorb the high-energy rays, and the beam passes through them.
• Dense materials inside our bodies, like bones, absorb the radiation.
• The X-Ray film develops depending on the areas which were exposed to the X-Rays.
• White areas show the denser tissues, such as bones that have absorbed the X-Rays whereas black areas on an X-Ray represent areas where the X-Rays have passed through soft tissues.
   

Properties of X-Rays :

• They have a shorter wavelength of the electromagnetic spectrum.
• Requires high voltage to produce X-Rays.
• They are used to capture human skeleton defects.
• They travel in a straight line and do not carry an electric charge with them.
• They are capable of traveling in a vacuum.
   

Explanation:

• Due to their wavelengths being shorter, these can be used for radar systems.
• X-rays cannot be used for radar systems.
• Radar systems typically use radio waves or microwaves for their operation, which have much longer wavelengths compared to X-rays.
• X-rays have much shorter wavelengths and are commonly used in medical imaging and industrial applications due to their ability to penetrate matter.