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June 20th, 2014, 04:55 PM
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Download NET Electronic Science (paper II) Exam Paper

Give me question paper for Electronic Science paper II examination of National eligibility examination of University Grants Commission ?

Here I am giving you question paper for Electronic Science paper II examination of National eligibility examination of University Grants Commission in PDF file attached with it so you can get it easily.

3. The radiative and non-radiative life
times of the minority carriers in the
active region of a double hetero- junction LED are 60 ns and 100 ns
respectively. The internal quantum
efficiency is given by :
(A) 60% (B) 62.5%
(C) 37.5% (D) 82.5%

4. In a p type silicon sample, the hole
concentration is 2.25 × 1015/cm3.
If the intrinsic carrier concentration
is 1.5 × 1010/cm3, the electron
concentration is given by
(A) zero
(B) 1010/cm3
(C) 105/cm3
(D) 1.5 × 1025/cm3

5. A signal m(f) = 5 sin (2π 100t)
frequency modulates a carrier. The
resulting FM signal is
{10 cos (2π 105t) + 15 sin (2π 100 t)}.
The approximate bandwidth of FM
signal is
(A) 0.1 kHz (B) 1 kHz
(C) 3.2 kHz (D) 4 kHz

6. What is the Octal equivalent of the
binary number 11111001 ?
(A) 761 (B) 762
(C) 371 (D) 372

8. The gauge factor of a resistance wire
strain gauge is a measure of
(A) Sensitivity of the gauge
(B) Resolution
(C) Dynamic range of displacement
measurement capability
(D) Variable inductance

9. In an LVDT, the two secondary wind map
are connected in differential to obtain
(A) higher output voltage
(B) an output voltage which is
phase sensitive, i.e., the o/p
voltage has a phase which can
lead up to a conclusion whether
the displacement of the core
took place from right to left or
from left to right.
(C) in order to establish a null or
the reference point for the
replacement of the core.
(D) both (B) and (C)

10. Microprocessor is also known as
CPU. What is CPU ?
(A) Control Processing Unit
(B) Central Processing Unit
(C) Central Progressing Unit
(D) Control Progressing Unit

11. If ‘i’ is a variable, i++ denotes
(A) ‘i’ is incremented twice
(B) ‘i’ is incremented once
(C) ‘i’ is replaced with i + 2
(D) ‘i’ is multiplied by 2

12. For a SMF, following characteristic
are given by
1. 0 ≤ v < 2.405
2. v >> 2.405
3. Core radius is less than 10 μm
4. Attenuation is of the order of 1 dB/km
Which of the following statement is
true ?
(A) 1 and 4 is correct.
(B) 2 and 3 is correct.
(C) 1 and 3 is correct.
(D) 3 and 4 is correct.



Attached Files
File Type: pdf NET Electronic Science paper II Exam Paper.pdf (106.5 KB, 83 views)

Last edited by Neelurk; May 6th, 2020 at 12:01 PM.
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