Q. Which of the following particles has the highest penetrating power?

निम्नलिखित में से किस कण की भेदन क्षमता सबसे अधिक है?

A
Alpha particles
अल्फा कण
B
Beta particles
बीटा कण
C
Gamma rays
गामा किरणें
D
Neutrons
न्यूट्रॉन

Explanation

Gamma rays are highly penetrating electromagnetic radiation that can pass through thick materials.
Alpha particles have low penetration (stopped by paper), beta particles moderate (stopped by aluminum), and neutrons also penetrate but generally less than gamma rays.

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