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Chapter 15: Problem 2207

was the first to predict the existence of electromagnetic waves. (A) Maxwell (B) Faraday (C) Ampere (D) hertz

Short Answer

Expert verified
The correct answer is (A) Maxwell, as he predicted the existence of electromagnetic waves through his formulation of Maxwell's equations.

Step by step solution

01

Recognize the scientists

Here, we need to recognize the contributions of the scientists mentioned in the options: (A) James Clerk Maxwell (B) Michael Faraday (C) André-Marie Ampère (D) Heinrich Hertz
02

Identify the correct answer

Recall that James Clerk Maxwell was the scientist responsible for predicting the existence of electromagnetic waves. He formulated a set of equations known as Maxwell's equations, which describe the behavior of electromagnetic fields. These equations also showed that fluctuating electric and magnetic fields could give rise to a self-propagating wave in a vacuum, known as an electromagnetic wave. Thus, the correct answer to this question is: (A) Maxwell

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Most popular questions from this chapter

What oscillates in an electromagnetic wave? (A) \(\mathrm{E}^{-}\) and \(\mathrm{B}^{-}\) (B) \(\mathrm{B}^{-}\) (C) \(E^{-}\) (D) none of these

Dimensional formula of intensity of radiation is (A) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-2}\) (B) \(\mathrm{M}^{1} \mathrm{~L}^{0} \mathrm{~T}^{-2}\) (C) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-3}\) (D) \(\overline{\mathrm{M}^{1} \mathrm{~L}^{0} \mathrm{~T}^{-3}}\)

An electric charge oscillating with a frequency of 1 kilo cycles/s can radiates electromagnetic waves of wavelength (A) \(100 \mathrm{~km}\) (B) \(200 \mathrm{~km}\) (C) \(300 \mathrm{~km}\) (D) \(400 \mathrm{~km}\)

The frequency of electromagnetic wave having wavelength \(25 \mathrm{~mm}\) is \(\quad \mathrm{Hz}\) (A) \(1.2 \times \overline{10^{10}}\) (B) \(7.5 \times 10^{5}\) (C) \(1.2 \times 10^{8}\) (D) \(7.5 \times 10^{6}\)

The SI unit of displacement current is (A) coulomb (B) henry (C) ampere (D) faraday
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