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Which of following is CFC gas ?...

Which of following is CFC gas ?

A

`O_(3)`

B

`CO_(2)`

C

CO

D

Freon

Text Solution

Verified by Experts

The correct Answer is:
D
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KUMAR PRAKASHAN-ELECTROMAGNETIC WAVES-SECTION D MULTIPLE CHOICE QUESTIONS (MCQs)
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  2. ….. can be used to cook the food.

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  3. …. Lamp is used in physiotherapy treatement.

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  4. When skin gets exposed UV radiation for a long time, it develops …..

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  5. Which of following is CFC gas ?

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  6. Cracks in bones can be detected using ………

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  7. ….. are used to kill cancerous cells.

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  8. In communication system and RADAR microwave are used, because …….

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  9. Ozone layer absorbs …..

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  10. The wavelength less than …… Å almost all the electromagnetic waves are...

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  11. Wavelengths of some electromagnetic waves are given below. Arrange the...

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  12. Wavelength of infrared waves is …..

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  13. The wavelength 5890 Å and 5896 Å of sodium doublet correspond to …. re...

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  14. In electromagnetic spectrum ……… the light has lowest wavelength.

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  15. Which of the following electromagnetic wave has maximum wavelength ?

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  16. Which of the following group has the frequency of electromagnetic ray ...

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  17. Which of the following is not electromagnetic waves ?

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  18. For communication which electromagnetic waves are used by cellular pho...

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  19. Which type of rays are used for LASIK eye surgery ?

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  20. ……. frequency is use in TV.

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