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Electromagnetic Waves

An electromagnetic wave of frequency v=3.0 {MHz} passes from v

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An electromagnetic wave of frequency $v = 3.0 MHz$ passes from vacuum into a dielectric medium with permittivity $\in= 4.0$ . Then

wavelength is halved and frequency remains unchanged

wavelength is doubled and frequency becomes half

wavelength is doubled and frequency remains unchanged

wavelength and frequency both remain unchanged.

Views: 5,411 students

Updated on: Oct 11, 2023

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Emma Discussed

An electromagnetic wave of frequency

v = 3.0 MHz

passes from vacuum into a dielectric medium with permittivity

\in= 4.0

. Then

12 mins ago

Discuss this question LIVE

12 mins ago

Text solutionVerified

Frequency remains constant during refraction

v_{med} = \frac{1}{μ _{0} ϵ _{0} \times 4} = \frac{c}{2}

\frac{λ _{med}}{λ _{air}} = \frac{v _{med}}{v _{air}} = \frac{c /2}{c} = \frac{1}{2}

∴

wavelength is halved and frequency remains unchanged.

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Question Text	An electromagnetic wave of frequency $v = 3.0 MHz$ passes from vacuum into a dielectric medium with permittivity $\in= 4.0$ . Then
Updated On	Oct 11, 2023
Topic	Electromagnetic Waves
Subject	Physics
Class	Class 12
Answer Type	Text solution:1 Video solution: 15
Upvotes	1370
Avg. Video Duration	5 min

An electromagnetic wave of frequency $v = 3.0 MHz$ passes from vacuum into a dielectric medium with permittivity $\in= 4.0$ . Then

Text solutionVerified

Filo tutor solutions (15)

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An electromagnetic wave of frequency v=3.0MHz passes from vacuum into a dielectric medium with permittivity ∈=4.0. Then

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An electromagnetic wave of frequency $v = 3.0 MHz$ passes from vacuum into a dielectric medium with permittivity $\in= 4.0$ . Then