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Choose the correct option...

Choose the correct option

A

The radiation in increasing order of frequency areradio waves, micro waves, infrared, visible, ultraviolet, `x`-rays, gamma rays, cosmic rays

B

The wavelength of colours in increasing order violet, indigo, blue, green, yellow, orange and red

C

The speed of light is maximum in vacuum

D

All options are correct

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The correct Answer is:
D
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CP SINGH-ELECTROMAGNETIC WAVES-EXERCISES
  1. Electromagnetic waves are produced by

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  2. Speed of electromagnetic waves is the same

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  3. An em wave going through vacuum is described by E=E0sin(kx-omegat) B...

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  4. A plane electromagnetic wave is incident on a material surface. The wa...

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  5. An electromagnetic wave going through vacuum is described by E= E0 s...

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  6. Which of the following have zero average value un a plane electromagne...

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  7. Consider the following two statements regarding a linearly polarized, ...

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  8. The energy contained in a small volume through which an electromagneti...

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  9. An electric field (vec E) and a magnetic field (vec B)exist in a regio...

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  10. Choose the correct option

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  11. The electric and the magnetic field, associated with an e.m. wave prop...

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  12. An electromagnetic wave travel along z-axis. Which of the following pa...

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  13. The frequencies of X-rays, gamma-rays and ultraviolet rays are respect...

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  14. The oscillating electric and magnetic vectors of an electromagnetic wa...

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

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  16. The electric field associted with an electromagnetic wave in vacuum is...

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

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  18. The rms value of the electric field of the light from the sun is 720 N...

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  19. If the total electromagnetic energy falling on a surface is U then the...

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  20. Find the energy stored in a 60 cm length of a laser beam operating at ...

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