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A plane electromagnetic wave E2 = 100cos(6 × 108t + 4x)V/m propagates in a medium. Find the value of dielectric constant of the medium.
- a)2.0
- b)4.0
- c)2.4
- d)1.5
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
A plane electromagnetic waveE2= 100cos(6 × 108t+ 4x)V/mpropagate...
We have E2 = 100 cos (6 × 108t + 4x) ....(i)
Comparing this with
we get
....(ii)
k = 4 ....(iii)
Velocity of emf is given = ω/k
Comparing this with
we get
....(ii)k = 4 ....(iii)
Velocity of emf is given = ω/k
By Eq. (iii) refractive index of the medium
⇒ n = 2 ...(v)
The dielectric constant k = (n2)
k = (2)2
k = 4.0
The correct answer is: 4.0
⇒ n = 2 ...(v)
The dielectric constant k = (n2)
k = (2)2
k = 4.0
The correct answer is: 4.0
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A plane electromagnetic waveE2= 100cos(6 × 108t+ 4x)V/mpropagate...
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A plane electromagnetic waveE2= 100cos(6 × 108t+ 4x)V/mpropagates in a medium. Find the value of dielectric constant of the medium.a)2.0b)4.0c)2.4d)1.5Correct answer is option 'B'. Can you explain this answer?
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