A scientist is designing a device that will kill harmful cells in the human body using high-energy waves. Which type of wave would be most effective in accomplishing this goal?

A. X-rays would be the best choice because they have a long wavelength and a low frequency.
B. Infrared waveswould be the best choice because they have a short wavelength and a high frequency.
C. Radio waves would be the best choice because they have a long wavelength and a low frequency.
D. Gamma rays would be the best choice because they have a short wavelength and a high frequency.

there are no correct statementd on the list of choices you provided.

where is the circuit diagram ?

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia