Q
How does the human ear respond to frequencies below 20 Hz?
RRB Group D
20 Aug, 2026 (9:00 AM - 10:30 AM)
2026
✓ Answer:
C
The human ear cannot hear frequencies below 20 Hz
The correct choice is The human ear cannot hear frequencies below 20 Hz. It follows from the relevant Newtonian mechanics, motion, work, energy, power or simple-machine relationship.