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(1) In free space at a pont magnitude of...

(1) In free space at a pont magnitude of electric field vector `(vecE)` is 9.3 `V//m`. Find the magnitude of magnetic field vector `(vecB)` at the point
(2). Out of ultraviolet infrared and X-rays whose wavelength is maximum ?

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The correct Answer is:
(a). `B=(v)/(E)=(3xx10^(8))/(9.3)=3.22xx10^(7)T`
(b). Infrared ray's
(a). `B=(v)/(E)=(3xx10^(8))/(9.3)=3.22xx10^(7)T`
(b). Infrared ray's
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RESONANCE-ELECTRO MAGNETIC WAVES-Exercise 3
  1. During the propagation of e.m. wave in a medium

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

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

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

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

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

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

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

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  9. Which of the following are not electromagnetic waves ?

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

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

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

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

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

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

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

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  17. Which of these statement is false:

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  18. Infrared spectrum lies between

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  19. A man can take pictures of those objects which are not fully visible t...

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  20. The electromagnetic radiations are in descending order of wavelength i...

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