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The speed of plane electromagnetic waves is maximum in
  • a)
    water
  • b)
    tourmaline
  • c)
    glass
  • d)
    vacuum
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The speed of plane electromagnetic waves is maximum ina)waterb)tourmal...
Speed is inversely proportional to the refractive index. As vacume has the least refractive index the speed of em waves will be max in it. So, option D is corect
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Community Answer
The speed of plane electromagnetic waves is maximum ina)waterb)tourmal...
The speed of any electromagnetic waves in free space is the speed of light c = 3x108 m/s. Electromagnetic waves can have any wavelength λ or frequency f as long as λf = c.
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The speed of plane electromagnetic waves is maximum ina)waterb)tourmalinec)glassd)vacuumCorrect answer is option 'D'. Can you explain this answer?
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