UET combined entry test 2005
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| UET |
Physics:
1. Scalar
product of two parallel vectors is ……………
2. Work
done on a body is equal to change in its ………………. (position, distance,
displacement, KE)
3. Rocket
propulsion utilizes the law of conservation of ………..
4. Minimum
initial velocity to escape earth’s gravitation is called ………….. 5. Acceleration
and angular acceleration are related by the relation………
2 1 1
6. The
terminal velocity of falling droplet is proportional to ……….(r , r , 2 , ).
r r
7. In
damped oscillations amplitude …………… with time.
8. Speed
of sound is maximum in ……….. (air, glass, water, iron).
9. Bending
of light when passing near obstacles is called…………
10. The
phenomenon that best explains the transverse nature of light is …………(reflection
,refraction , diffraction, polarization).
11. The
critical angle is such angle of incidence for which angle of refraction is …………
12. The
entropy of a system ………….. for a reversible process.
13. Work
done on a unit charge is equal to change in its…………
14. The
formula for heating effect of current is……..
15. The
unit for emf is …….
16. Weber
is the unit for ……….
17. Formula
of magnetic flux density is ……….
18. In a
capacitor circuit the voltage ……………. the applied current.
19. The
semiconductor substance containing holes are called ………….
20. The
ratio β or current
gain of transistor is …………..
21. To
accurate locate a microscopic particle one must use light wave of ………….
22. Velocity
of an electron in an orbit is …………… to its principal quantum number.
23. Electrons
emit photons when they jump from………
24. If a
body is moving in a circular motion with constant speed then the it has got the
constant ………….
25. Magnetic
flux is maximum when conductor is placed at an angle of …………… to magnetic
field.
26. Power
dissipated in a pure inductor circuit is ……….
27. Which
one is not the unit of mass …………….. (gram, kg, dyne, slug).
Answers:
1. Null vector 2.
K.E. 3.
Momentum decreases
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4. Escape velocity
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5. a =
rα 6.
r 7.
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8. iron 9. diffraction 10. Polarization
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11.
90°
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12.
remains constant
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13. Electric potential energy. 14. H
= I 2 Rt
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15. Volt
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16. magnetic flux
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17.
Wb 2 18. lags by 90
° 19. p-type semiconductors 20.
IC
21. small wavelength
m IB
22. inversely proportional
23.
Higher orbit to lower orbit. 24.
constant magnitude only
25. 90°
26. zero 27.
dynes
Chemistry:
1.
In chromatography the rates of solute is
determined by the ……………
2.
Graham’s gas law is concerned with ………….
3.
The standard temperature and pressure conditions
are ………….
4.
Spreading of a scent of rose is due to process
of …………..
5.
The common crystal type of carbon is ……………..
6.
Lowest possible principal quantum number is
…………..
7.
Which one of following is non-polar molecule
…………. (CH 4 ,BF3 ,CHCl3 ,H 2O)
8.
∆H is always negative for ………………
reactions.
9.
Dust particles in air are example of a mixture
of type ………………
10.
The difference of BP’s of substances of a
mixture is utilized in the separation technique of ……………
11.
The solubility depends on …………..
12.
Which one of following belong to group IV-A (
Pb, Sb, Ba, Fe) 13. Formula of pure clay is …………….
14. The
highest ionization energy in 5th group is of ………….
15. The
catalyst used to convert SO2 to SO3 is ………………….
16. When
gypsum loses ¾ of water then the hemihydrate formed has formula …………. 17. Down
cell is used to prepare…………
18.
Aqua regia consists of ………..
19.
H 4 P2 O7 is the formula of …………..
20.
Bleaching powder is made by passing chlorine
over …………
21.
In transition elements color formation is due to
…………..
22.
The formula of
tetramminedichlorodinitroplatinum(IV)sulphate is ………..
23.
Production of vegetable ghee involves ………….
CH 2 −COOH
24. || is the formula of ………….
NH 2
25.
Phosphorus is important in the development of
…………
26.
Which of these is not a nucleophile …………… ( H 2O,BF3 ,SO2 )
Answers
1. Distribution law 2.
Gaseous diffusion 3. 0°
and 760 mm Hg.
hexagonal
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4.
diffusion 5. Cubic
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6. 1 7. CH 4 8.
Exothermic 9. solid in gas
|
10.
Fractional distillation
|
11. nature of solute, solvent and temperature. 12.
Pb Nitrogen
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13.
K2O.Al2O3 .6SiO2 14.
|
15.
V
2O
5 16.
CaSO4 .
12
H2O 17. Sodium metal 18.
HNO
3 & HCl
19.
Pyrophosphoric acid 20. Calcium
hydroxide 21.
d-d transition 22.
[PtCl(NO2 )(NH3 )4 ]SO4
23.
Hydrogenation 24. Glycine (amino acid) 25.
Seed 26.
BF3
Mathematics:
1.
Polar form of 1+3
ι is …………
2.
Multiplicative inverse of (a, -b) is ………..
3.
Which one of following is biconditional …………… ( p↔q, p→q, p←q, p⇒q)
3 −1
4.
The inverse of 2 1
is …………..
5.
The quadratic equation with roots α and β is ……………..
6.
= ……………..
7.
Sum of infinite geometic series is ………..
n
8.
∑K = ………..
k=1
9.
General expression in the expansion of binomial
formula is ……………
= …………
11.
tan(2α)
= …………….
12.
Law of cosines is ……………
13. tan−1(A)−
tan−1(B) = ………………. sin ax
14.
Lim =
……….. x→0 sinbx
15.
If y = cos−1(x) then y' = …………..
16.
For x = c of f(x) the relative maxima is for
……………..
17. ∫ xcos xdx = ………..
18.
Area under the curve y = x2+1 from x
= -2 to x = -1 is ……………
19.
Equation of normal to x2 +
y2 = 25 at (4,3) is ………….
20.
Latusrectum of ellipse has length …………
(x−1)2 (y −1)2
21.
The centre of
− =1 is …………
2 9
22.
The projection of vector A along B is ……………
23.
Which of the following points represents a right
triangle ……………
24.
∫(x − )2.dx = ………..
25.
cos2 h2x = ………….
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