What is a normal frequency range?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
"Normal" varies by context:
- Human hearing: 20 Hz to 20,000 Hz
- Human voice: 85 Hz to 255 Hz (fundamental frequencies)
- Visible light: 430 THz to 770 THz
- AC electricity: 50 Hz or 60 Hz
- Radio FM: 88 MHz to 108 MHz
- Wi-Fi: 2.4 GHz or 5 GHz
Each application has its optimal frequency range based on physical properties and practical requirements.
Suggested Q&A
General · Class 12- GeneralClass 12Electric Field at Centre of Ring with Non-Uniform Charge Distribution. Four quadrants carry linear charge densities: +2λ, −2λ, +λ, −λ. Find electric field at centre.
- GeneralClass 12P°(hexane) = 408 Torr, P°(heptane) = 141 Torr. x(hexane) = 0.300. Find Y₆ and Y₇.
- GeneralClass 122N₂O₅(g) → 4NO₂(g) + O₂(g). Initial P = 50 mmHg; P at 30 min = 87.5 mmHg. Find P at 60 min.
- GeneralClass 12What is the difference between psychosis and neurosis?
- GeneralClass 12What is the difference between prism and a pyramid?
- GeneralClass 12What is the difference between phrase and clause?