Q144 / 200 · NEET 2024 · Physics

The property which is not of an electromagnetic wave travelling in free space is that:

  • A
    The energy density in electric field is equal to energy density in magnetic field
  • B
    They travel with a speed equal to $\frac{1}{\sqrt{\mu_0 \varepsilon_0}}$
  • Correct answer
    C
    They originate from charges moving with uniform speed
  • D
    They are transverse in nature

Solution

The EM waves originate from an accelerating charge. The charge moving with uniform velocity produces steady state magnetic field.

Hence, the correct answer is option: 'C'.

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