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What is the velocity of a plane wave in a lossless medium having a relative permittivity of 5 and relative permeability of unity?
  • a)
    3 x 108 m/s
  • b)
    107 m/s
  • c)
    2 x 108 m/s
  • d)
    1.3 x 108 m/s
Correct answer is option 'D'. Can you explain this answer?
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Explanation:

Velocity of a plane wave in a lossless medium can be calculated as:

v = 1/√(με)

where μ is the relative permeability and ε is the relative permittivity.

Given, μ = 1 and ε = 5

Substituting the values in the above equation, we get:

v = 1/√(1 x 5) = 1/√5

Multiplying and dividing by √5, we get:

v = √(5)/5

v = 1.3 x 10^8 m/s

Therefore, the correct answer is option D.

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Explanation:

Explanation:

Velocity of a plane wave in a lossless medium can be calculated as:

v = 1/√(με)

where μ is the relative permeability and ε is the relative permittivity.

Given, μ = 1 and ε = 5

Substituting the values in the above equation, we get:

v = 1/√(1 x 5) = 1/√5

Multiplying and dividing by √5, we get:

v = √(5)/5

v = 1.3 x 10^8 m/s

Therefore, the correct answer is option D.


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What is the velocity of a plane wave in a lossless medium having a relative permittivity of 5 and relative permeability of unity?a)3 x 108 m/sb)107 m/sc)2 x 108 m/sd)1.3 x 108m/sCorrect answer is option 'D'. Can you explain this answer?
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