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An electromagnetic wave of frequency v=3...

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

A

wavelength is doubled and the frequency remains unchainged

B

wavelength is doubled and frequency becomes half

C

wavelength is halved and frequency remains unchanged

D

wavelength and frequency both remain unchanged

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The correct Answer is:
C
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Knowledge Check

  • An electromagnetic wave of v=3 MHz passes from vacuum into dielectric medium with epsi= 4 epsi_0 . then

    A
    Wavelength is doubled and frequency becomes half .
    B
    Wavelength is doubled and frequency is same .
    C
    Wavelength and frequency both remain unchanged .
    D
    Wavelength is halved but frequency remains same .

  • The electromagnetic wave of frequency 3 MHz to 30 MHz are

    A
    in ground wave propagation
    B
    in sky wave propagation
    C
    in microwave propagation
    D
    in satellite communication

  • The electromagnetic wave of frequency 2 MHz to 30 MHz are

    A
    In ground wave propagation
    B
    In sky wave propagation
    C
    In microwave propagation
    D
    Both `(a)` and `(b)`
    • RESONANCE-ELECTRO MAGNETIC WAVES-Exercise 3
    1. An electromagnetic wave of frequency v=3.0 MHz passes from vacuum into...

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    2. An electromagnetic wave in vacuum has the electric and magnetic field ...

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    3. The magnetic field In a travelling electromagnetic wave has a peak val...

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    4. During the propagation of e.m. wave in a medium

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    5. (1) Write Gauss'law for magnetism in the form of maxwell equation. (...

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    6. (1) In free space at a pont magnitude of electric field vector (vecE) ...

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    7. To which part of the electromagnetic spectrum does a wave of frequency...

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    8. Considering the case of a parallel plate capacitor being charged, show...

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    9. Write the mathmatical equation of Ampere-maxwell law.

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    10. Identify the constituent radiations of electromagnetic spectrum which ...

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    11. The displacement current flows in the dielectric of a capacitor when t...

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    12. Which of the following are not electromagnetic waves ?

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    13. if lamda(v'),lamda(x) and lamda(m) represent the wavelengths of visibl...

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    14. The frequency of a light wave in a material is 2xx10^(14)Hz and wavele...

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    15. The electric and magnetic field of an electromagnetic wave is

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    16. The velocity of electromagnetic radiatior in a medium of permittivity ...

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    17. Which of the following statement is false for the properties of electr...

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    18. The electric field on an electromagnetic wave in free space is given b...

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    19. The velocity of all radiowaves in free space is 3xx10^(8),//s, the fre...

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    20. Which of these statement is false:

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