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The amplitude of electric field in a par...

The amplitude of electric field in a parallel light beam of intensity `4Wm^(-2)` is

A

35.5 N/C

B

45.5 N/C

C

49.5 N/C

D

55.5 N/C

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The correct Answer is:
D
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The SI unit of electric field intensity is

RESNICK AND HALLIDAY-ELECTROMAGNETIC WAVES -PRACTICE QUESTIONS (Single Correct Choice Type )
  1. An electromagnetic wave is transposing energy in the negative y direct...

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  2. The light intensity 10 m from a point source is 1000 W/m^(2) . The int...

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  3. The amplitude of electric field in a parallel light beam of intensity ...

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

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

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  6. Evidence that electromagnetic waves carry momentum when

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  7. Light of uniform intensity shines perpendicularly on a totally absorbi...

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  8. A linearly polarized transverse wave is propagating in z direction thr...

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  9. A vertical automobile radio antenna is sensitive to electric fields th...

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  10. Polarized light

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  11. For linearly polarized light the plane of polarization is

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  12. An unpolarized beam of light has intensity I(0) . It is incident on to...

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  13. Three polarizing sheets are placed in a stack with the polarizing dire...

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  14. A light bulb shines light along the x axis and through two parallel id...

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  15. Two polaroids are kept crossed to each other. Now one of them is rotat...

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  16. A beam of light is linearly polarized . You wish to rotate its directi...

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  17. Electrimagnetic waves are transverse is nature is evident by

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  18. Linear polarized light is incident at Brewster angle on the surface of...

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  19. When light is incident from air to glass at an angle 57^@, the reflect...

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  20. Note the different types of electromagnetic radiation : (1) X-rays ...

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