___________ rays are the most dangerous type of radiation.

___________ rays are the most dangerous type of radiation.

• A. Alpha
• B. Beta
• C. Gamma
• D. X-ray

Answer: (C)

Gamma rays are the most dangerous because of their high penetrating power. They are energetic photons emitted from the atomic nucleus and can pass through the body, delivering ionizing energy to internal tissues and organs. That deep penetration makes external exposure harder to shield against, requiring dense barriers like lead or several centimeters of concrete and keeping distance to reduce dose. In contrast, alpha particles can be stopped by skin or a sheet of paper and are mainly dangerous if inhaled or ingested; beta particles are stopped by clothing or a few millimeters of material; X-rays are also penetrating but gamma rays typically have higher energy and deeper penetration, making them the most hazardous in many radiological scenarios.

Gamma rays are the most dangerous because of their high penetrating power. They are energetic photons emitted from the atomic nucleus and can pass through the body, delivering ionizing energy to internal tissues and organs. That deep penetration makes external exposure harder to shield against, requiring dense barriers like lead or several centimeters of concrete and keeping distance to reduce dose. In contrast, alpha particles can be stopped by skin or a sheet of paper and are mainly dangerous if inhaled or ingested; beta particles are stopped by clothing or a few millimeters of material; X-rays are also penetrating but gamma rays typically have higher energy and deeper penetration, making them the most hazardous in many radiological scenarios.