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The magnetic field in a plane electromag...

The magnetic field in a plane electromagnetic wave is given by
`B_(y) = 2 xx 10^(-7) sin (0.5 xx 10^(3)x + 1.5 xx 10^(11) t)`.
This electromagnetic wave is

A

Visible light

B

Infrared

C

Microwave

D

Radiowave

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-ELECTROMAGNETIC WAVES-ASSIGNMENT SECTION - A Objective Type Questions
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  2. An electromagnetic wave going through vacuum is described by E= E0 s...

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  3. Electromagnetic wave is deflected by

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  4. Which of the following travels with the speed of light ?

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  5. Red light differs from blue light in its

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  6. Which of the following has the largest wavelength?

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  7. Express velocity of electromagnetic wave in a material medium in terms...

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  8. Which of the following statement is incorrect about electromagnetic wa...

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  9. Which of the following have zero average value in a plane electromagne...

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  10. An electromagnetic wave is propagating in vacuum along z-axis, the ele...

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  11. The speed of em wave in the unit of 10^8m//s, in a medium of dielectri...

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  12. The magnetic field in a plane electromagnetic wave is given by B(y) ...

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  13. The dimensional formula of (1)/(2) epsilon(0) E^2 is (E = "electric fi...

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  14. Which of the following represents an infrared wavelength

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  15. Which of the following is not transported by electromagnetic waves?

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  16. Hertz experiment is used for

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  17. Electromagnetic waves are produced by - (A) A static charge (B) A uni...

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  18. Ozone layer blocks the radiaitons of wave length

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  19. Which of the following is used in the treatment of cancer

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  20. The following can be arranged in decreasing order of wave number A. ...

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