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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEP
Chapter
Electromagnetic Waves

Olympiad workbook · NSEP · Electromagnetic Waves

The electric field component of an electromagnetic wave is...

The electric field component of an electromagnetic wave is expressed as E=(3j+bk)×10−3sin⁡E=(3 j+b k) \times 10^{-3} \sin\left[10^7(x+2 y+3 z-\beta t)\right]inSIunits.Takingin SI units. Takingc=3 \times 10^8 m \mathrm{~s}^{-1} as the speed of electromagnetic wave in vacuum, choose the correct option(s)

Options

  1. AThe value of constant beta is β=3×108×14\beta=3 \times 10^8 \times \sqrt{14}
  2. BThe value of constant b is b=2\mathrm{b}=2.
  3. CThe average energy density of the em wave is U=6.5×10−6ε0U=6.5 \times 10^{-6} \varepsilon_0 in SI units.
  4. DThe amplitude of magnetic field is B=1.20×10−11B=1.20 \times 10^{-11} Tesla

Correct answer

D. The amplitude of magnetic field is B=1.20×10−11B=1.20 \times 10^{-11} Tesla

Step-by-step solution

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