How WDM works in wireless system...as we say that it works in optical and signals transmitted in this are light signals...??

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ORACLE/SQL-RDBMS 1.Max (), Min () Functions, 2. Order by, Group by Functions, 3. Sql Pipe Functions 4. Truncate Functions Which Part of Sql? DDL, DML, or TCL 5. Find Out Primary keys in databases 6. Select Customers who have same city Based on constraints based on index based on view based on group by

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hi! plz give me some intervievs question in electronics

3 Answers   LG Soft,

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Explain am and fm.

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what is the significance of 4-20ma signal in hart protocol

2 Answers   IBM, Wizard Electronics,

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i cleared the written xam. for the post of atc now what i am going to prepare for the interview plz.guide me i dnt wanna loose this organisation bcoz its my dream company

0 Answers   AAI Airports Authority Of India,

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Give an Example for negative feedback and positive feedback?

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what is call procedure?

3 Answers   Ericsson,

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what's the cut in voltage for a led?

4 Answers   Infosys,

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why length of antenna is taken as one half of wavelength or one fourth of wavelength? Why not one eighth or one sixteenth?

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What is a p-n junction diode? State and explain some of its applications.

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What is channel coding?

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