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Which of the following is correct ? (sym...

Which of the following is correct ? (symbols have their ususal meanings)

A

P=PC

B

Intensity `=("Power")/("area")`

C

`B=(E)/(C)`

D

All of these

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The correct Answer is:
D
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AAKASH INSTITUTE-ELECTROMAGNETIC WAVES-ASSIGNMENT (SECTION-A)(OBJECTIVE TYPE QUESTIONS (ONE OPTIONE IS CORRECT)
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  2. The ratio of contributions made by the eletric field and magnetic fiel...

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  3. Which of the following is correct ? (symbols have their ususal meaning...

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  4. Which of the following is a green house gas

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  5. Which of the following is correct about microwave oven?

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  6. Which gas prouduced by the welding arcs are harmful the eyes ?

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

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  8. Thermoplies are used for the detection of

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  9. The bombardent of high energy electrons on a metal target of high atom...

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  10. The bombardent of high energy electrons on a metal target of high atom...

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  11. Which of the following is/are not used as diagnostic tool in medicine?

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  12. Diffefent types of electromagnetic waves are defined on the basis of

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  14. Ozone layer exists at oan altitude of

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  16. Earth satellite use the detectors of which electromagnetic waves ?

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  17. One cannot get tanned or sunburn through glass window because

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

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  19. The greatest technological importane of electromagnetic wave stem from...

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  20. Which of the following is /are correct ?

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