Multiple choice

The items amenable to detection by soft X - rays are

  1. contrabands

  2. lead in bullets

  3. narcotics

  4. genuine coins from counterfeit coins
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Soft X-rays have low penetrating power. They can distinguish between materials of different densities or compositions, such as identifying the metallic content of genuine coins versus counterfeit ones.

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