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  9. Q150

RRB Technician (Grade I Signal + Grade III) 2026 · Question 150 of 265

Read the given assertion and reason and select the correct option based on the analysis of these statements. Assertion: Stethoscope uses the concept of multiple reflection of sound waves for its working. Reason: Sound waves require a material medium for their propagation.

  1. ABoth assertion and reason are true and the reason is the correct explanation of the assertion.
  2. BAssertion is false and reason is true.
  3. CBoth assertion and reason are true and the reason is not the correct explanation of the assertion.Correct
  4. DAssertion is true but reason is false.

Answer: C. Both assertion and reason are true and the reason is not the correct explanation of the assertion.

Official answer key verified. Detailed explanation coming soon.

Source: RRB Technician Grade III 09-Mar-2026 Shift 3 (oliveboard compilation with answer key) · reliable-secondary

← Q149View full paper (265 questions)Q151 →

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