Range of frequency of microwaves is about (A) 530 kHz to 1710 kHz (B) 54 MHz to 890 MHz (C) 3 GH

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Range of frequency of microwaves is about (A) 530 kHz to...

Range of frequency of microwaves is about
(A) $530 \mathrm{kHz}$ to $1710 \mathrm{kHz}$
(B) $54 \mathrm{MHz}$ to $890 \mathrm{MHz}$
(C) $3 \mathrm{GHz}$ to $300 \mathrm{GHz}$
(D) $4 \times 10^{14} \mathrm{~Hz}$ to $7 \times 10^{14} \mathrm{~Hz}$

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Key Concepts

Electromagnetic Spectrum

The electromagnetic spectrum encompasses all types of electromagnetic radiation, arranged according to their wavelengths and frequencies. This spectrum includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Understanding the spectrum helps in categorizing different forms of radiation based on their energy levels and applications in technology and science.

Microwave Radiation

Microwaves are a specific portion of the electromagnetic spectrum with frequencies typically ranging from about 3 GHz to 300 GHz. They are situated between radio waves and infrared radiation and are commonly used in applications such as communications, radar systems, and microwave ovens due to their ability to penetrate various materials and excite molecular motions.

Frequency and Unit Conversions

Frequency, measured in hertz (Hz), indicates the number of oscillations or cycles per second of a wave. Units like megahertz (MHz) and gigahertz (GHz) are used to express higher frequency ranges, allowing for a clearer understanding of the scale involved in different parts of the electromagnetic spectrum, particularly in the microwave region.

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