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Ozone layer blocks the radiations of wav...

Ozone layer blocks the radiations of wave length

A

less than`3xx10^(-7)` m

B

equal to `3xx10^(-7)` m

C

more than `3xx10^(-7)` m

D

all of these

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-ELECTROMAGNETIC WAVES-EXERCISE -IA
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  2. Ozone layer absorbs these radiations of sun

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  3. Ozone layer blocks the radiations of wave length

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  4. Ozone layer absorbs all such radiation whose wavelengths are

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  5. A radiation of energy E falls normally on a perfectly reflecting surfa...

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  6. The type of electromagnetic wave propagation which is effected as a re...

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  7. X-rays are known as to be electromagnetic radi­ation. Therefore the X-...

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  8. The altitude of the ozone layer in the atmosphere and the ‘type’ of th...

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  9. Four atmospheric layers are given below, namely (i) stratosphere (ii) ...

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  10. Infrared radiation is detected by

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  11. Finger prints on a piece of paper may be detected by sprinkling fluore...

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  12. The atmosphere above the height of 80 km is called

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  13. The frequency from 3Hz to 30MHz is known as

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  14. The frequency from 3xx10^(9) Hz to 3xx10^(10) Hz is

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  15. A cube of edge a has its edges parallel to X, Y and Z -axis of rectang...

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  16. Green house effect is due to

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  17. One requires lleV of energy to dissociate a carbon monoxide molecule i...

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  18. The ration of contributions made by the electric field and magnetic fi...

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  19. An EM wave radiates outwards from a dipole antenna, with Eo as the amp...

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  20. A variable frequency a.c source is conneced to a capacitor. How will t...

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