Certain devices utilize electromagnetic waves to determine the position and velocity of an object. In these devices, the waves are emitted, reflected off the object, and then returned to the device. By understanding the wave's speed and the time it takes for the wave to return, the distance traveled by the wave can be calculated. Which category of wave would be the most secure choice for such a device?

Question

options:

X-rays would be the most secure option as they have the capability to go through various materials.
X-rays would be the most secure option as they have the capability to go through various materials.

Opting for radio waves is the safest decision as they pose the least harm to organisms.
Opting for radio waves is the safest decision as they pose the least harm to organisms.

Opting for gamma waves is the safest decision due to their higher speed of travel.
Opting for gamma waves is the safest decision due to their higher speed of travel.

Choosing ultraviolet waves is the safest option since they are the most visually detectable.

Answer 1

In the context of devices that utilize electromagnetic waves to determine the position and velocity of an object, the best option from the choices provided would be:

Opting for radio waves is the safest decision as they pose the least harm to organisms.

Radio waves are commonly used in various applications such as radar and communication, and they are non-ionizing, meaning they do not carry enough energy to ionize atoms or molecules or cause damage to living tissues. This makes them a safer option for the detection of objects without posing health risks.

While X-rays and gamma rays can penetrate materials and are faster, they are ionizing radiation, which can pose health risks to living organisms. Ultraviolet waves can also be harmful and are not primarily used for object detection in the same context as radio waves. Therefore, radio waves are the most secure and safe choice.