According to your lab partner, a 2.00-cm-thick sodium-iodide crystal absorbs all but \(10 \%\) of rays from a radioactive source and a 4.00-cm piece of the same material absorbs all but \(5 \%\) ? Is this result reasonable?

= 45% absorption per cm #Step 2: Determine the expected absorption for a 4.00-cm-thick crystal# #tag_title# Step 2: Determine the expected absorption for a 4.00-cm-thick crystal #tag_content# Using the absorption rate per cm calculated in Step 1, we can calculate the expected absorption for a 4.00-cm-thick crystal: Expected absorption = (45% absorption per cm) * 4.00 cm = 180% absorption #Step 3: Evaluate the reasonability of the result# #tag_title# Step 3: Evaluate the reasonability of the result #tag_content#Ending up with a 180% absorption value indicates that our calculations might not correctly represent the real phenomena, as it is impossible to absorb more than 100% of rays. Additionally, a 4.00-cm crystal letting only 5% of rays pass through implies a 95% absorption, which doesn't correlate with our calculated expected absorption of 180%. Therefore, the given result seems not reasonable.