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Chapter 15: Problem 2128

Which of the following electromagnetic waves has the longest wavelength? (A) Radio waves (B) Infrared radiations (C) x rays (D) visible rays

Short Answer

Expert verified
The electromagnetic waves with the longest wavelength among the given options are (A) Radio waves.

Step by step solution

01

Understand the Electromagnetic Spectrum

Electromagnetic waves are classified based on their wavelengths. The electromagnetic spectrum, from longest wavelength to shortest wavelength, is as follows: Radio waves, Microwaves, Infrared rays, Visible light, Ultraviolet rays, X-rays, and Gamma rays.
02

Identify the Longest Wavelength

From the given options: (A) Radio waves (B) Infrared radiations (C) X-rays (D) Visible rays According to the electromagnetic spectrum, the order of these waves based on their wavelengths is: Radio waves > Infrared rays > Visible rays > X-rays
03

Answer the Question

Since radio waves have the longest wavelength among the given options, the answer is (A) Radio waves.

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Most popular questions from this chapter

The oscillating electric and magnetic field vectors of an electromagnetic waves far away from source are oriented along (A) Mutually perpendicular direction and differ in phase by \(90^{\circ}\) (B) Mutually perpendicular and in same phase (C) In same direction and in same phase (D) In same direction and differ in phase by \(90^{\circ}\)

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