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[Results] Prelims 2020 Over - Gearing for 2021

Guys now that we are discussing about prelims questions so much, I thought I might also pitch in.

Regarding Visible Light Communication question, the last statement- "there can be no electromagnetic interference". All coachings are saying that this statement is correct.

But how can an electromagnetic wave (here visible light) be free of interference? I am sure if a same frequency/wavelength electromagnetic wave is used, there most definitely can be interference.

Can any expert please throw light on this?

Thanks in advance.

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@Harsh_capf_acSir can you pls throw light on the VLC question. Thanks


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Guys regarding the critical tiger habitat question, I have submission to make. Wiki mentions that the core area of Nagarjun-Srisailam Tiger Reserve is "The core area of this reserve is 1,200 km2(460 sq mi)". Whereas, the Core zone of the Sundarban National Park is having an area of 1330.12 sq km (http://www.wildbengal.com/sundarban.php).

I don't want to say this is wrong or right, only want to know if there is some critical info with you guys. Thanks.


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@majormiketangoIn fact, critical tiger habitat has been revised in Sunderbans to 1700 sq km.


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@rafaelIf you check on this link,http://www.nstr.in/index.php:

it is a bit complicated.


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@Aurang_mirasudar2 of the 5 districts are in Telangana


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Not casting doubt on these insider news items, but itne jaldi result? Not even 20 days?
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Guys I think very low chance for today. Does it seem reasonable to you that UPSC can release the result in less than 20 days?
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