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Question 1 of 10
1. Question1 points
Silicon is not suitable for fabrication of light emitting diodes because it is :Correct
Question 2 of 10
2. Question1 points
The microwave device working on the principal of Faraday rotation is called as :Correct
Question 3 of 10
3. Question1 points
For various types of oscillators, the correct statement is :Correct
Question 4 of 10
4. Question1 points
To increase gain of a parabolic reflector antenna by 6 dBi , the correct statement is : (Assuming efficiency 70 %)Correct
Question 5 of 10
5. Question1 points
In a full wave rectifier circuit with centre tap transformer, if voltage between one end of secondary winding and centre is 300 V peak , then PIV (peak inverse voltage) is :Correct
Question 6 of 10
6. Question1 points
The effect of phase error of local oscillator on spectral components in coherent detection of SSB Amplitude modulated signal is :Correct
Question 7 of 10
7. Question1 points
If a right hand circularly polarised wave is incident on a perfect conductor. The reflected wave is :Correct
Question 8 of 10
8. Question1 points
Principle of “locality” is used in context of :Correct
Question 9 of 10
9. Question1 points
The information rate to be transmitted is 900 bits/sec , FEC is 3/4 , the symbol rate for QPSK modulation scheme is :Correct
Question 10 of 10
10. Question1 points
A non dispersive media has :Correct
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