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The electromagnetic spectrum contains di...

The electromagnetic spectrum contains different electromagnetic waves that

A

differ from one another in frequency not in wavelength, have same source.

B

differ from one another in frequency, and wavelength, have same source.

C

have same frequency and wavelength but different source

D

differ from one another in frequency and wavelength

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CHETANA PUBLICATION-ELECTROMAGNETIC WAVES AND COMMUNICATON SYSTEM-EXERCISE
  1. Which of the following is NOT a part of electromagnetic spectrum?

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  2. Operators working on X-ray equipment have a chance of getting skin dis...

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  3. The electromagnetic spectrum contains different electromagnetic waves ...

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  4. In T.V. and V.C.R. remote control uses

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  5. The natural source of Ultraviolet rays is

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  6. Radio waves and visible light in vacuum have

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  7. To induce an e.m.f. in the coil

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  8. Which of the following waves are not electromagnetic waves?

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  9. Electromagnetic waves were first produced in the laboratory by

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  10. The.....% of the solar radians are infrared in nature.

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  11. Ultraviolet rays can NOT pass through

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  12. The air in the stratosphere contains

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  13. Which of the following statements is NOT CORRECT?

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  14. The radio waves reflected from.......are called space wave.

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  15. The special infrared photograph of the body to see diseased parts is c...

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  16. In the diagnosis of superficial tumours and varicose veins which of th...

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  17. The sound waves after being converted into electrical waves are not tr...

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  18. Choose the correct options. Earth's atmosphere is rechest in

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  19. Choose the correct options. A device that converts one form of energ...

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  20. Choose the correct options. Ultraviolet rays can NOT pass through ...

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