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The velocity of electromagnetic radiation in a medium of permittivity ε₀ and permeability μ₀ is equal to 1/√μ₀ε₀.

1. Velocity = 1/√μ₀ε₀.
2. Velocity = 1/μ₀ε₀.
3. Velocity = √μ₀ε₀.
4. Velocity = μ₀ε₀.

Correct answer: Velocity = 1/√μ₀ε₀.

Solution

The velocity of electromagnetic waves in a medium is given by v = 1/√(μ₀ε₀), where μ₀ is the permeability and ε₀ is the permittivity of the medium. This is a fundamental result derived from Maxwell's equations.

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