With reference to ‘LiFi’, recen

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With reference to ‘LiFi’, recently in the news, which of the following statements is/are correct?

It uses light as the medium for high-speed data transmission.
It is a wireless technology and is several times faster than ‘WiFi’. Select the correct answer using the code given below.

'LiFi' ?? ?????? ???, ??? ?? ??? ?????? ???, ?????????? ??? ?? ??? ?? ??? ??? ?? / ????

?? ???-????? ???? ?????????? ?? ??? ?????? ?? ??? ??? ?????? ?? ????? ???? ???
?? ?? ??????? ????? ?? ?? '??????' ?? ????? ??? ?? ???? ??? ??? ???? ??? ?? ??? ?? ????? ???? ??? ????? ??????

[UPSC Prelims-2016]

A 1 only

1 ही

B 2 only

२ ही

C Both 1 and 2

दोनों 1 और 2

D Neither 1 nor 2

न तो 1 और न ही 2

Using light to deliver wireless internet will also allow connectivity in environ...

??????? ??????? ???? ?? ??? ?????? ?? ????? ???? ?? ??????? ??? ??????????? ?? ?...

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