Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 8 - Electromagnetic Waves>Exercise>Q 36

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In an electromagnetic wave in free space the root-mean-square value of the electric field is $E_{rms} = 6 V m^{- 1}$ . The peak value of the magnetic field is

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Important Questions on Electromagnetic Waves

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Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 8 - Electromagnetic Waves>Exercise>Q 37

The amplitude of an electromagnetic wave in vacuum is doubled with no other changes made to the wave. As a result of this doubling of the amplitude, which of the following statement is correct?

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Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 8 - Electromagnetic Waves>Exercise>Q 38

The electric field of an electromagnetic wave travelling through vacuum is given by the equation

E = E_{0} \sin (k x - ω t)

. The quantity that is independent of wavelength is

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Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 8 - Electromagnetic Waves>Exercise>Q 39

Pick the incorrect statement for electromagnetic waves?

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Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 8 - Electromagnetic Waves>Exercise>Q 40

In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of

2.0 \times 10^{10} H z

and amplitude

48 V / m

, What is the amplitude of the oscillating magnetic field? Take,

c = 3 \times 10^{8} m / s