Question

The mass attenuation coefficient of copper is 0.0589 cm2
/g for 1.0-MeV photons. The intensity of 1.0-
MeV X-ray photons in a narrow beam is reduced to what fraction by a slab of copper 1 cm thick? The
density of copper is 8.9 g/cm3

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Tagged in
Science
Advanced Physics

Electromagnetic waves