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NEET2007PhysicsNuclear PhysicsActual

Assertion : ( ⁹⁴ Sr ) from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consumed by them. It causes impairment of the production of red blood cells. Reason : The energetics ( )-particles emitted in the decay of ( ⁹⁴ Sr ) damage the bone marrow.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion
  3. CIf assertion is true but reason is false
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion

Step-by-step solution

( ⁹⁴ Sr ) from ( ²³⁵ U ) fission is absorbed through milk. Their emission of ( ⁻ )particles will damage the bone-marrow as ( Sr ) is absorbed in bones.

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