Q
When a bell rings inside a jar and the air is slowly removed, what happens to the sound?
RRB Group D
19 Aug, 2026 (12:45 PM - 2:15 PM)
2026
✓ Answer:
B
The sound becomes fainter as air is removed
Sound needs a material medium. As air is removed, less sound reaches the listener, so the bell becomes fainter.
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