Multiple choice technology

Which of the following is UHF?

  1. 40 MHz

  2. 400 MHz

  3. 4000 MHz

  4. 40 KHz

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ultra High Frequency (UHF) ranges from 300 MHz to 3 GHz. 400 MHz falls within this range. UHF is used for TV broadcasting, mobile phones, Wi-Fi, and other communications. 40 MHz is VHF, 4000 MHz (4 GHz) is SHF (Super High Frequency), and 40 KHz is in the LF/VLF range.