Diathermy uses what kind of waves?

Diathermy uses what kind of waves?

• A. Radio waves
• B. Sound waves
• C. Light waves
• D. Gamma rays

Answer: (A)

Diathermy relies on radiofrequency electromagnetic energy to heat deep tissues. This means the waves are in the radio part of the spectrum (shortwave or microwave), not sound or visible light. The energy penetrates tissue and is converted into heat through dielectric heating or eddy currents, producing deeper warming than many other modalities. Sound waves would be ultrasound (mechanical energy), light waves would be infrared/visible light (photonic energy often affecting more superficial tissue), and gamma rays are ionizing and unsafe for this use. So diathermy uses radio waves.

Diathermy relies on radiofrequency electromagnetic energy to heat deep tissues. This means the waves are in the radio part of the spectrum (shortwave or microwave), not sound or visible light. The energy penetrates tissue and is converted into heat through dielectric heating or eddy currents, producing deeper warming than many other modalities. Sound waves would be ultrasound (mechanical energy), light waves would be infrared/visible light (photonic energy often affecting more superficial tissue), and gamma rays are ionizing and unsafe for this use. So diathermy uses radio waves.