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The speed of electromagnetic wave in vac...

The speed of electromagnetic wave in vacuum depends upon the source of radiation. It

A

increases as we move from`gamma`-rays of radio waves

B

decreases as we move from `gamma`-rays to radio waves

C

is same for all of them

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Speed of electromangnetic waves in vacuum `= (1)/(sqrt(mu_(0)epsi_(0)))`
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DC PANDEY-ELECTROMAGNETIC WAVES-Sec A
  1. Consider the following statement regarding a beam of LASER. (I) It i...

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

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  3. The speed of electromagnetic wave in vacuum depends upon the source of...

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  4. The velocity of electromagnetic waves in free space can be given by re...

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  5. Which one of the following is the property of a monochromatic, plane e...

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  6. The essential distinction between X - rays and gamma - rays is that

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  7. An EM wave radiates out wards from a dipole antenna with E(0) as the a...

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  8. The sum delilvers 10^(4) W//m^(2) of electromagnetic flux to earth's s...

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  9. If E and B represent electric and magnetic field vectors of the electr...

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  10. If epsi(0) and mu(0) are respectively, the electric permittivity and t...

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  11. Which is the correct expression of velocity of light?

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

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  13. The average electric field of electromagnetic waves in certain region ...

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  14. The electric and the magnetic field, associated with a electromagnetic...

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  15. The magnetic field amplitude of an electromagnetic wave is 2 xx 10^(-7...

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  16. A parallel plate capacitor is charged to 60 muC. Due to a radioactive ...

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  17. The pressure exerted by an electromagnetic wave of intensity I (Wm^(-2...

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  18. An L-c resonant circuit contains a 200 pF capacitor and a 200muH induc...

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  19. Radiation of intensity 1 W//m^(2) are striking on a metal plate. The p...

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  20. A linearly polarised electromagnetic wave given as E=E(0)haticos(kz-om...

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