Optics - 111108086

13

deepanshu001 agarwal ·2009-04-23 06:19:29

d

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Pavithra Ramamoorthy ·2009-04-23 06:22:09

i too think d)..

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Mani Pal Singh ·2009-04-23 06:22:26

c hoga

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kamalendu ghosh ·2009-04-23 06:29:11

no answer is b.......koi reason hain ki aisa hi tukka??

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deepanshu001 agarwal ·2009-04-23 06:29:24

asli ans kya hai ....?

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kamalendu ghosh ·2009-04-23 06:33:00

@ deeopansh .. bata toh diya b

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Celestine preetham ·2009-04-23 07:52:00

ya its less than one saw somewhere in pradeeps
reason : due to ions there is some interaction

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Anirudh Narayanan ·2009-04-23 08:33:12

must we remember all this????

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Manas ·2009-04-23 08:39:06

hey it is true that when the refractive index is less than 1 then its reflecting power is very high and thats why ionosphere is used for communication.

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Anirudh Narayanan ·2009-04-23 08:43:28

NO..I AM ASKING WHETHER IT IS IMPORTANT TO REMEMBER ALL THESE BITS AND PIECES INFORMATIONS??

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ANKIT MAHATO ·2009-04-23 10:19:47

less that one ... yaar ionosphere is above the air we live .. we take air as 1 so ionosphere is <1 as it is rarer .. :)

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