The diagram above illustrates the penetrating power of some types of radiation. X, Y and...

Physics

JAMB 2023

The diagram above illustrates the penetrating power of some types of radiation. X, Y and Z are likely

A. X = α-particle; Y = γ-ray; Z = β-particle
B. X = α-particle; Y = β-particle; Z = γ-ray
C. X = γ-ray; Y = α-particle; Z = β-particle
D. X = β-particle; Y = γ-ray; Z = α-particle

NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Correct Answer: Option C

Explanation

The penetrating power of alpha rays, beta rays, and gamma rays varies greatly. Alpha particles can be blocked by a few pieces of paper. Beta particles pass through paper but are stopped by aluminum foil. Gamma rays are the most difficult to stop and require concrete, lead, or other heavy shielding to block them.

Therefore, X = γ-ray; Y = α-particle; Z = β-particle

There is an explanation video available below.

Previous Next

Go back to Phy classroom

Report an Error Ask A Question Download App