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Operators working on X-ray equipment hav...

Operators working on X-ray equipment have a chance of getting skin disease due to

A

gas generated by X-rays

B

chemicals used in X-ray machine

C

skin tissues getting affected

D

darkness in room

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CHETANA PUBLICATION-ELECTROMAGNETIC WAVES AND COMMUNICATON SYSTEM-EXERCISE
  1. The lower layer of the earth's atmosphere is called.

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  2. Which of the following is NOT a part of electromagnetic spectrum?

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

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  4. The electromagnetic spectrum contains different electromagnetic waves ...

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

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  6. The natural source of Ultraviolet rays is

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  7. Radio waves and visible light in vacuum have

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

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

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  10. Electromagnetic waves were first produced in the laboratory by

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

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  12. Ultraviolet rays can NOT pass through

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  13. The air in the stratosphere contains

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  14. Which of the following statements is NOT CORRECT?

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

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

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

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

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

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

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