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The small ozone layer on top of the stra...

The small ozone layer on top of the stratosphere is crucial for human survival. Why ?

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Ultraviolet radiations emitted from Sun are quite harmful to human life, because they damage the genes in the live cells. The ..ozone layer.. in the Earth.s atmosphere absorb such hazardous radiations and thus provides life protection to all humans. Thus, ozone layer becomes quite essential for the safe existence of mankind.
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KUMAR PRAKASHAN-ELECTROMAGNETIC WAVES-SECTION B NUMERICALS (Numerical From Textual Exercise)
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  2. Suppose that the electric field part of an electromagnetic wave in vac...

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  3. Suppose that the electric field part of an electromagnetic wave in vac...

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  4. Suppose that the electric field part of an electromagnetic wave in vac...

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  5. Suppose that the electric field part of an electromagnetic wave in vac...

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  6. Suppose that the electric field part of an electromagnetic wave in vac...

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  7. About 5% of the power of a 100 W light bulb is converted to visible ra...

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  8. About 5% of the power of a 100 W light bulb is converted to visible ra...

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  9. Use the formula lambda(m)T=0.29 cm K to obtain the characteristic temp...

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  10. Given below are some famous numbers associated with electromagnetic ra...

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  11. Given below are some famous numbers associated with electromagnetic ra...

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  12. Given below are some famous numbers associated with electromagnetic ra...

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  13. Given below are some famous numbers associated with electromagnetic ra...

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  14. Given below are some famous numbers associated with electromagnetic ra...

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  15. Long distance radio broadcasts use short - wave bands. Why ?

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  16. It is necessary to use satellites for ling distance TV transmission. W...

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  17. Optical and radiotelescopes are built on the ground but X - ray astron...

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  18. The small ozone layer on top of the stratosphere is crucial for human ...

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  19. If the earth did not have an atmosphere, would its average surface tem...

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  20. Some scientists have predicted that a global nuclear war on the earth ...

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