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The velocity of all radiowaves in free s...

The velocity of all radiowaves in free space is `3xx10^(8),//s`, the frequency of a wave of wavelength `150 m` is

A

45 MHz

B

2 MHz

C

2 KHz

D

20 KHz

Text Solution

Verified by Experts

The correct Answer is:
B
`C = n lambda`
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NARAYNA-ELECTROMAGNETIC WAVES -EXERCISE -1(C.W)
  1. If a source is transmitting electro magnetic waves of frequency 8.196 ...

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  2. The wave function (in S.I unit) for an electromagnetic wave is given a...

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

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  4. The relative permeability of glass is 3//8 and the dielectric constant...

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  5. An electromagnetic wave of frequency v=3.0 MHz passes from vacuum into...

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  6. In a plane electromagnetic wave propagating in space has an electric f...

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  7. The amplitude of the magnetic field part of a harmonic electromagnetic...

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  8. In a plane electromagnetic wave, the electric field oscillates sinnuso...

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  9. In a plane electromagnetic wave, the electric field oscillates sinusoi...

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  10. In an apparatus the electric field was found to oscillate with an ampl...

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  11. The amplitude of the sinusodially oscillating electric field of a plan...

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  12. Light with energy flux of 18W//cm^(2) falls on a non reflecting surfac...

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  13. Light with energy flux of 24Wm^(-2) is incident on a well polished dis...

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  14. The magnetic field in a plane electromagnetic wave is given by B= (200...

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  15. The average value of electric energy density in an electromagnetic wav...

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  16. The electric field of a plane electromagnetic wave varies with time of...

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  17. The maximum electric field of a plane electromagnetic wave is 88V//m. ...

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  18. The rms value of electric field of a plane electromagnetic wave is 314...

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  19. The magnetic of pointing vector and electric field vector are respecti...

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  20. The intensity of the sunlight reaching the earth is 1380 W(m^-2). Assu...

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