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Chapter 15: Problem 2202

Which of the following electromagnetic wave has the least wavelength? (A) radiowave (B) visible wave (C) ultraviolet rays (D) microwaves

Short Answer

Expert verified
The electromagnetic wave with the least wavelength among the given options is (C) ultraviolet rays.

Step by step solution

01

Remember the electromagnetic spectrum

The electromagnetic spectrum is the range of all types of electromagnetic waves, ordered by their frequency and wavelength. It includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. The order of the waves in the spectrum is important for comparison.
02

Identify the order of the given waves

According to the electromagnetic spectrum, the order of the given waves from largest to smallest wavelength is: 1. Radiowaves 2. Microwaves 3. Visible waves 4. Ultraviolet rays
03

Determine the wave with the least wavelength

As we can see from the order of the waves in the spectrum, the wave with the least wavelength among the given options is ultraviolet rays.
04

Choose the correct answer

Now that we have determined the wave with the least wavelength, we can choose the correct answer from the options provided. The answer is: (C) ultraviolet rays

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Most popular questions from this chapter

Unit of energy density of electromagnetic wave is (A) \(\mathrm{Jm}^{-3}\) (B) \(\mathrm{Jm}^{-2}\) (C) \(\mathrm{wm}^{-2}\) (D) None of these

Electromagnetic waves are produced by (A) a static charge (B) a moving charge (C) an accelerating charge (D) chargeless particles

A plane electromagnetic wave of frequency \(25 \mathrm{MHz}\) travels in free space along the \(\mathrm{x}\) direction. At a particular point in space and time \(\mathrm{E}^{-}=6.3 \mathrm{j} \wedge \mathrm{Vm}^{-1}\) then \(\mathrm{B}^{-}\) at this point is (A) \(2.1 \times 10^{-8}\) i \(\mathrm{T}\) (B) \(2.1 \times 10^{-8} \mathrm{k} \wedge \mathrm{T}\) (C) \(1.89 \times 10^{9} \mathrm{k} \wedge \mathrm{T}\) (D) \(2.52 \times 10^{-7} \mathrm{k} \wedge \mathrm{T}\)

Which of the following pairs of the component of space and time varying $\mathrm{E}^{-}=\left(\mathrm{E}_{\mathrm{x}} \mathrm{i} \wedge+\mathrm{Eyj} \wedge+\mathrm{Ezk} \wedge\right)$ and $\mathrm{B}^{-}=\left(\mathrm{B}_{\mathrm{x}} \mathrm{i}^{\mathrm{i}}+\mathrm{Byj}^{\wedge}+\mathrm{Bzk} \wedge\right)$ would generate a plane electromagnetic wave travelling in \(+\) ve \(z\) direction (A) \(E x, B y\) (B) \(\mathrm{Ey}, \mathrm{Bz}\) (C) \(\mathrm{Ex}, \mathrm{Bz}\) (D) \(E z, B x\)

The maximum value of \(\mathrm{E}^{-}\) in an electromagnetic waves in air is equal to \(6.0 \times 10^{-4} \mathrm{Vm}^{-1}\). The maximum value of \(\mathrm{B}^{-}\) is (A) \(1.8 \times 10^{5} \mathrm{~T}\) (B) \(2.0 \times 10^{4} \mathrm{~T}\) (C) \(2.0 \times 10^{-12} \mathrm{~T}\) (D) \(1.8 \times 10^{13} \mathrm{~T}\)
See all solutions

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