In which of the following is transmission of sound not possible?

Question

In which of the following is transmission of sound not possible?

1. A. Air
2. B. Vacuum (Correct answer)
3. C. Aluminium
4. D. Water

Correct Answer

Option B — Vacuum

Detailed Solution & Explanation

The correct answer is Vacuum.

Key Points

• Sound is a mechanical wave that requires a medium (solid, liquid, or gas) to travel.
• In a vacuum, there are no particles to vibrate, so sound propagation is impossible.

प्रश्न (हिन्दी में)

निम्नलिखित में से किसमें ध्वनि का संचरण संभव नहीं है?

1. A. वायु
2. B. निर्वात
3. C. एल्युमीनियम
4. D. पानी