Moderate

The frequency range of electromagnetic waves is _.

Correct answer: A. 106 Hz

  • A. 106 Hz
  • B. 108 Hz
  • C. 109 Hz
  • D. 1011 Hz

Explanation

A frequency of 10⁶ Hz corresponds to 1 MHz (megahertz). This falls within the range of radio frequencies. The electromagnetic spectrum spans frequencies ranging from extremely low frequencies (ELF) in the range of a few Hz to frequencies in the hundreds of terahertz (THz). Therefore, 10⁶ Hz represents a frequency in the radio frequency range.The frequency range of electromagnetic waves spans an incredibly vast spectrum, ranging from very low frequencies (VLF) to extremely high frequencies (EHF) and beyond. This spectrum is broadly divided into different bands or categories, each with its own range of frequencies and applications. Here's an overview: Extremely Low Frequencies (ELF): Frequencies below 3 kHz. Very Low Frequencies (VLF): Frequencies from 3 kHz to 30 kHz. Low Frequencies (LF): Frequencies from 30 kHz to 300 kHz. Medium Frequencies (MF): Frequencies from 300 kHz to 3 MHz. High Frequencies (HF): Frequencies from 3 MHz to 30 MHz. Very High Frequencies (VHF): Frequencies from 30 MHz to 300 MHz. Ultra-High Frequencies (UHF): Frequencies from 300 MHz to 3 GHz.

Last updated

About Electronics

A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.

Practise Electronics

660 free Electronics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Physics questions like this

Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions