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DUET 2019 MSc In formatics Previous Queston Papers

Delhi University Entrance Test (DUET) 2019 MSc In formatics Previous Queston Papers

This post was last modified on 19 June 2020

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DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA

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DU MSc Informatics IIC

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Topic:- DU_J19_MSC_INFO

Directions: Read the following information carefully and answer the questions given below:

Six persons P, Q, R, S, T and U are sitting in two rows, three in each.

T is not at the end of any row.

S is second to the left of U
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R, the neighbor of T, is sitting diagonally opposite to S

Q is the neighbor of U.

Which of the following are sitting diagonally opposite to each other?

[Question ID = 25648]
1. S and P [Option ID = 42588]
2. P and R [Option ID = 42589]
3. P and U [Option ID = 42590]
4. U and R [Option ID = 42587]
Correct Answer :-
- U and R [Option ID = 42587]
Directions: Read the following information carefully and answer the questions given below:

Six persons P, Q, R, S, T and U are sitting in two rows, three in each.

T is not at the end of any row.

S is second to the left of U
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R, the neighbor of T, is sitting diagonally opposite to S

Q is the neighbor of U.

Which of the following are in one of the two rows?

[Question ID = 25649]
1. UQR [Option ID = 42591]
2. RTQ [Option ID = 42592]
3. SQU [Option ID = 42593]
4. PTU [Option ID = 42594]
Correct Answer :-
- UQR [Option ID = 42591]
Direction: Choose the most appropriate preposition:

The mother was anxious the safety of her son.

[Question ID = 25640]
1. upon [Option ID = 42558]
2. about [Option ID = 42556]
3. at [Option ID = 42555]
Correct Answer :-
- at [Option ID = 42555]

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Direction: Choose the most appropriate preposition:

The reward was not commensurate the work done by us.

[Question ID = 25642]
1. order [Option ID = 42566]
2. with [Option ID = 42565]
3. for [Option ID = 42563]
4. on [Option ID = 42564]
Correct Answer :-
- for [Option ID = 42563]

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Direction: Choose the most appropriate preposition:

He had to repent what he had done.

[Question ID = 25641]
1. of [Option ID = 42560]
2. for [Option ID = 42562]
3. over [Option ID = 42561]
4. at [Option ID = 42559]
Correct Answer :-
- at [Option ID = 42559]

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Direction: Choose the most appropriate preposition:

Our tragic experience in the recent past provides an index....... The state of lawlessness in this region.

[Question ID = 25643]
1. by [Option ID = 42570]
2. of [Option ID = 42567]
3. in [Option ID = 42568]
4. at [Option ID = 42569]
Correct Answer :-
- of [Option ID = 42567]

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If the binding energy of the electron in a hydrogen atom is 13.6eV, the energy required to remove the electron from the first excited state of Li2+ is [Question ID = 25693]
1. 13.6eV [Option ID = 42769]
2. 30.6eV [Option ID = 42767]
3. 122.4eV [Option ID = 42768]
Correct Answer :-
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- 30.6eV [Option ID = 42767]
If the angle between the direction of incident X-ray and diffracted one is 16º, the angle of incidence will be [Question ID = 25697]
1. 24° [Option ID = 42786]
2. 90° [Option ID = 42785]
3. 32° [Option ID = 42784]
4. 820 [Option ID = 42783]
Correct Answer :-
- 820 [Option ID = 42783]

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Moving clock loses 1 minute in each hour. The speed of clock is [Question ID = 25679]
1. 2.7×10⁸ ms^-1 [Option ID = 42713]
2. 5.4×10⁷ ms^-1 [Option ID = 42711]
3. 5.4×10⁸ ms^-1 [Option ID = 42712]
4. 0.7×10⁷ ms^-1 [Option ID = 42714]
Correct Answer :-
- 5.4×10⁷ ms^-1 [Option ID = 42711]
Calculate the root mean square speed of the molecules of hydrogen gas at S.T.P. Density of hydrogen at S.T.P. is 9×10^-2 kg.m^-3. [Question ID = 25687]
1. 1540ms^-1 [Option ID = 42743]
2. 1740ms^-1 [Option ID = 42745]
3. 1840ms^-1 [Option ID = 42746]
4. 1640ms^-1 [Option ID = 42744]
Correct Answer :-
- 1540ms^-1 [Option ID = 42743]
A young fat girl dances with high velocity, she will appear to her stationary friend [Question ID = 25678]
1. less fat [Option ID = 42707]
2. more fat [Option ID = 42708]
3. some time less and some time more fat [Option ID = 42710]
4. of same dimension [Option ID = 42709]
Correct Answer :-
- less fat [Option ID = 42707]
Without any additional circuitry, and 8:1 MUX can be used to obtain [Question ID = 25666]
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1. all functions of 4 variables. [Option ID = 42662]
2. all Boolean functions of 4 variables [Option ID = 42660]
3. all functions of 3 variables and some but not all of 4 variables. [Option ID = 42661]
4. some but not all Boolean functions of 3 variables. [Option ID = 42659]
Correct Answer :-
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- some but not all Boolean functions of 3 variables. [Option ID = 42659]
The electric field inside a conducting material of radius R is [Question ID = 25681]
1. q/4pe₀R² [Option ID = 42721]
2. qr/4pe₀r² [Option ID = 42720]
3. qr/4pe₀R³ [Option ID = 42719]
4. zero [Option ID = 42722]
Correct Answer :-
- qr/4pe₀R³ [Option ID = 42719]

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In a BPSK signal detector, the local oscillator has a fixed error of 20º. This phase error deteriorates the SNR at the output by a factor of [Question ID = 25673]
1. cos 20⁰ [Option ID = 42687]
2. cos²70⁰ [Option ID = 42690]
3. cos²20⁰ [Option ID = 42688]
4. cos 70⁰ [Option ID = 42689]
Correct Answer :-
- cos 20⁰ [Option ID = 42687]
Two coherent sources are placed 1mm apart and generate interference fringes on a screen 0.9m away. The second dark fringe is formed at a distance of 0.9mm from the central fringe. Determine the wavelength of the monochromatic light used. [Question ID = 25689]
1. 6000 Aº [Option ID = 42753]
2. 5000 Aº [Option ID = 42752]
3. 4000 Aº [Option ID = 42751]
4. 7000 Aº [Option ID = 42754]
Correct Answer :-
- 4000 Aº [Option ID = 42751]
A planet moves round the sun. At a point P, it is closest to the sun at a distance r₁ and has speed v₁. At another point Q, when it is farthest from the sun at a distance r₂, what is its speed? [Question ID = 25881]
1. r₁v₁/r₂^1/2 [Option ID = 43520]
2. r₂v₁/r₁^1/2 [Option ID = 43522]
3. r₁v₁/r₂ [Option ID = 43519]
4. r₂v₁/r₁ [Option ID = 43521]
Correct Answer :-
- r₁v₁/r₂ [Option ID = 43519]
Solve the initial value problem y"+6y'+13y=0;y(0)=3,y'(0)=7 [Question ID = 25715]
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1. y(x)= e^3x (3 cos2x-8 sin2x) [Option ID = 42858]
2. y(x)= e^-x(3 cos2x+8 sin2x) [Option ID = 42855]
3. y(x)= e^-2x (3 cos2x-8 sin2x) [Option ID = 42856]
4. y(x)= e^-3x (3 cos2x+8 sin2x) [Option ID = 42857]
Correct Answer :-
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- y(x)= e^-x(3 cos2x+8 sin2x) [Option ID = 42855]
An amplifier has an open-loop gain of 100, an input impedance of 1kO, and an output impedance of 100O. A feedback network with a feedback factor of 0.99 is connected to the amplifier in a voltage series feedback mode. The new input and output impedances, respectively, are [Question ID = 25662]
1. 100KO,1KO [Option ID = 42646]
2. 100KO,1O [Option ID = 42645]
3. 1O,1O [Option ID = 42643]
4. 1O,10O [Option ID = 42644]
Correct Answer :-
- 1O,1O [Option ID = 42643]

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An 8085 executes the following instructions

2710H LXI H, 30A0H

2713H DAD H

2714H PCHL

All addresses and constants are in Hex. Let PC be the contents of the program counter and HL be the contents of the HL register pair just after executing PCHL.
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Which of the following statements is correct?

[Question ID = 25668]
1. PC = 6140H HL = 6140H [Option ID = 42669]
2. PC = 2715H HL = 30A0H [Option ID = 42667]
3. PC = 30A0H HL = 2715H [Option ID = 42668]
Correct Answer :-
- PC = 2715H HL = 30A0H [Option ID = 42667]
In the 8085 microprocessor, the TST6 instruction transfers the program execution to the following location: [Question ID = 25669]
1. 24H [Option ID = 42672]
2. 30H [Option ID = 42671]
3. 60H [Option ID = 42674]
4. 48H [Option ID = 42673]
Correct Answer :-
- 30H [Option ID = 42671]
A signal x(t)=2cos(10⁴t) volts is applied to an FM modulator with the sensitivity constant of 10kHz/volt. Then the modulation index of the FM wave is [Question ID = 26444]
1. 4/p [Option ID = 45773]
2. 4 [Option ID = 45771]
3. 2 [Option ID = 45772]
4. 2/p [Option ID = 45774]
Correct Answer :-
- 4 [Option ID = 45771]
Introducing a resistor in the emitter of a common emitter amplifier stabilizes the dc operating point against variation in [Question ID = 25660]
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1. only in temperature [Option ID = 42635]
2. only the ß of the transistor [Option ID = 42636]
3. none of the above [Option ID = 42638]
4. both temperature and ß [Option ID = 42637]
Correct Answer :-
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- only in temperature [Option ID = 42635]
The de-Broglie wavelength of a particle having kinetic energy KE = E_k is given by [Question ID = 25686]
1. ? = h/vE_k [Option ID = 42739]
2. ? = h/v(2pmE_k) [Option ID = 42742]
3. ? = h/v2mE_k [Option ID = 42741]
4. ? = h/vmE_k [Option ID = 42740]
Correct Answer :-
- ? = h/vE_k [Option ID = 42739]

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The dielectric constant of a material at optical frequency is mainly due to [Question ID = 25683]
1. electronic polarizability [Option ID = 42727]
2. dipolar polarizability [Option ID = 42729]
3. ionic polarizability [Option ID = 42728]
4. ionic and dipolar polarizability [Option ID = 42730]
Correct Answer :-
- electronic polarizability [Option ID = 42727]
A laser beam of pulse power 10¹² w is focused on an object of area 10^-4cm².The energy flux in W/cm², at the point of focus is [Question ID = 25696]
1. 10¹⁶ [Option ID = 42781]
2. 10⁴ [Option ID = 42782]
3. 10²⁰ [Option ID = 42779]
4. 10⁸ [Option ID = 42780]
Correct Answer :-
- 10²⁰ [Option ID = 42779]
A laser beam of wavelength of 600nm with a circular-section having a radius of 10mm falls normally on a lens of radius 20mm and focal length 10cm. The radius of the focused spot is approximately [Question ID = 25695]
1. 3.0µm [Option ID = 42777]
2. 6.0µm [Option ID = 42778]
3. 0.3µm [Option ID = 42775]
4. 0.6µm [Option ID = 42776]
Correct Answer :-
- 0.3µm [Option ID = 42775]
Fill in the blanks with appropriate phrasal verbs from the alternatives given below under each item.
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He is making his career in sales

[Question ID = 25629]
1. committed in [Option ID = 42512]
2. committed to [Option ID = 42514]
3. committed for [Option ID = 42511]
4. committed with [Option ID = 42513]
Correct Answer :-
- committed for [Option ID = 42511]
Fill in the blanks with appropriate phrasal verbs from the alternatives given below under each item.
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Several people have sick today.

[Question ID = 25630]
1. called for [Option ID = 42516]
2. called on [Option ID = 42517]
3. called in [Option ID = 42515]
4. called to [Option ID = 42518]
Correct Answer :-
- called in [Option ID = 42515]
What is the probability of getting 7 or 11, when a pair of unbiased dice are tossed? [Question ID = 25721]
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1. 1/11 [Option ID = 42882]
2. 1/18 [Option ID = 42881]
3. 1/6 [Option ID = 42879]
4. 2/9 [Option ID = 42880]
Correct Answer :-
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- 1/6 [Option ID = 42879]
An ideal sawtooth voltage waveform of frequency 500 Hz and amplitude 3V is generated by changing a capacitor of 2µF in every cycle. The charging requires [Question ID = 25663]
1. constant current source of 3mA for 2ms. [Option ID = 42650]
2. constant current source of mA for 1ms. [Option ID = 42649]
3. constant voltage source of 3V for 2ms. [Option ID = 42648]
4. constant voltage source of 3V for 1ms. [Option ID = 42647]
Correct Answer :-
- constant voltage source of 3V for 1ms. [Option ID = 42647]

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For A=97, which of the following elements is stable isobar? [Question ID = 25698]
1. ⁴³M0⁹⁷ [Option ID = 42789]
2. ⁴²M0⁹⁷ [Option ID = 42790]
3. ⁴²Br⁹⁷ [Option ID = 42788]
4. ³⁴Br⁹⁷ [Option ID = 42787]
Correct Answer :-
- ³⁴Br⁹⁷ [Option ID = 42787]
A PLL signal can be used to demodulate [Question ID = 25671]
1. DSB-SC signals [Option ID = 42682]
2. FM signals [Option ID = 42681]
3. PM signals [Option ID = 42680]
4. PAM signals [Option ID = 42679]
Correct Answer :-
- PAM signals [Option ID = 42679]
The critical angle for glass (µg=1.5) immersed in oil (µo=1.1) [Question ID = 25684]
1. F_c = cot^-1(11/15) [Option ID = 42734]
2. F_c = sin^-1(11/15) [Option ID = 42731]
3. F_c = cos^-1(11/15) [Option ID = 42732]
4. F_c = tan^-1(11/15) [Option ID = 42733]
Correct Answer :-
- F_c = sin^-1(11/15) [Option ID = 42731]
In these Questions keyword is followed by four choices. Choose the one nearest to it in meaning.
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ETYMOLOGY

[Question ID = 25634]
1. Word derivation [Option ID = 42533]
2. Words [Option ID = 42534]
3. Ancient script [Option ID = 42531]
4. Foreign language [Option ID = 42532]
Correct Answer :-
- Ancient script [Option ID = 42531]
In these Questions keyword is followed by four choices. Choose the one nearest to it in meaning.
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LOATH

[Question ID = 25633]
1. Unwilling [Option ID = 42528]
2. Sickly [Option ID = 42529]
3. Tired [Option ID = 42527]
4. Spirited [Option ID = 42530]
Correct Answer :-
- Tired [Option ID = 42527]
In the following items, some parts of the sentence have been jumbled up. You are required to rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence and mark in your answer sheet accordingly.
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I came to India and when I landed (P)/ two words of Hindi (Q) / I could speak, rather badly (R) / when I was twelve (S).

The correct sentence sequence should be

[Question ID = 25631]
1. PRSQ [Option ID = 42522]
2. SPRQ [Option ID = 42520]
3. RQPS [Option ID = 42519]
4. QSRP [Option ID = 42521]
Correct Answer :-
- RQPS [Option ID = 42519]

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In the following items, some parts of the sentence have been jumbled up. You are required to rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence and mark in your answer sheet accordingly.

Most people not realizing how essential judicious exercise is (P)/ for good health (Q) / take next to no physical exercise (R)/ and are surprised when they fall ill (S).

The correct sequence should be

[Question ID = 25632]
1. RSPQ [Option ID = 42525]
2. QRSP [Option ID = 42526]
3. PQSR [Option ID = 42524]
4. PRSQ [Option ID = 42523]
Correct Answer :-
- PRSQ [Option ID = 42523]
The beta decay of the neutron is explicitly given by [Question ID = 25699]
1. n?p+e [Option ID = 42791]
2. n+p+e+ v_s [Option ID = 42792]
3. n?p+e+V [Option ID = 42793]
4. n+p+e+y [Option ID = 42794]
Correct Answer :-
- n?p+e [Option ID = 42791]
The number of distinct Boolean expressions of 4 variables is [Question ID = 25664]
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1. 1024 [Option ID = 42653]
2. 65536 [Option ID = 42654]
3. 256 [Option ID = 42652]
4. 16 [Option ID = 42651]
Correct Answer :-
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- 16 [Option ID = 42651]
The number of different wavelengths which can be observed in the spectrum of a hydrogen sample whose atoms are excited to a state having principal quantum number n is [Question ID = 25692]
1. n(n-1)/2 [Option ID = 42763]
2. n(n-1)/4 [Option ID = 42765]
3. n(n+1)/4 [Option ID = 42766]
4. n(n+1)/2 [Option ID = 42764]
Correct Answer :-
- n(n-1)/2 [Option ID = 42763]

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The number of bits in a binary PCM system is increased from n to n+1. As a result, the signal to quantization noise ratio will improve by a factor [Question ID = 25674]
1. 2^2(n+1)/n [Option ID =42693]
2. (n+1)/n [Option ID = 42691]
3. which is independent of n [Option ID = 42694]
4. 2^(n+1)/n [Option ID = 42692]
Correct Answer :-
- (n+1)/n [Option ID = 42691]
Obtain the tangential component of the acceleration of a particle which is at a point P(x,y) on the curve x= e^tcost, y=e^t sin t at any time t. [Question ID = 25717]
1. v3 e^3t [Option ID = 42866]
2. v2 e^t [Option ID = 42864]
3. v2 e^2t [Option ID = 42865]
4. e^t [Option ID = 42863]
Correct Answer :-
- e^t [Option ID = 42863]
A committee of 4 members is to be appointed from 3 officers of the production department, 4 officers of the purchase department,2 officers of the sales department and 1 chartered accountant. Find the probability of forming the committee which must include the chartered accountant. [Question ID = 25720]
1. 0.30 [Option ID = 42878]
2. 0.10 [Option ID = 42875]
3. 0.20 [Option ID = 42876]
4. 0.40 [Option ID = 42877]
Correct Answer :-
- 0.10 [Option ID = 42875]
The resolution of a 4-bit counting ADC is 0.5Volts. For an analog input of 6.6Volts, the digital output of the ADC will be [Question ID = 25667]
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1. 1100 [Option ID = 42665]
2. 1110 [Option ID = 42666]
3. 1011 [Option ID = 42663]
4. 1101 [Option ID = 42664]
Correct Answer :-
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- 1011 [Option ID = 42663]
Find the value of ? and µ so that the following equations

2x+3y+5z=9, 7x+3y-2z=8, 2x+3y+?z= µ

have no solution. [Question ID = 25701]
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1. ?=5, Any value of µ [Option ID = 42799]
2. ?=5,µ=9 [Option ID = 42801]
3. ?=5,µ?9 [Option ID = 42800]
4. ?5,µ?9 [Option ID = 42802]
Correct Answer :-
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- ?=5, Any value of µ [Option ID = 42799]
Negative feedback in amplifiers [Question ID = 25661]
1. does not effect the signal to noise ratio at the output [Option ID = 42641]
2. improves the signal to noise ratio at the output [Option ID = 42640]
3. improves the signal to noise ratio at the input [Option ID = 42639]
4. increases the distortion [Option ID = 42642]
Correct Answer :-
- improves the signal to noise ratio at the input [Option ID = 42639]

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A and B are two independent events such that P(A)=0.6,P(A?B)=0.8. Find P(B) [Question ID = 25724]
1. 1/2 [Option ID = 42893]
2. 1/3 [Option ID = 42892]
3. 1/4 [Option ID = 42891]
4. 1/5 [Option ID = 42894]
Correct Answer :-
- 1/4 [Option ID = 42891]
The Op-Amp shown in the following figure is ideal, R = 1/vL/C. The phase angle between Vo and Vi, at ?= 1/vLC is [Question ID = 26447]

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This post was last modified on 19 June 2020