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RANDOM QUESTIONS FROM NET 1 2 & 3

Posted by: Unknown Posted date: 23:37 / comment : 0 , , ,

RANDOM QUESTIONS FROM NET 1 2 & 3

NET-2 Physics
For accurate measurement of voltage, which instrument is used;
a) Potentiometer
b) Voltmeter
c) Digital AVO meter
d) all of these

NET-2 Maths 

Area of Ellipse x^2+4y^2=16 is

a) 8Ï€
b) 16Ï€
c) 32Ï€
d) 64Ï€
NET-1 Maths

Two dices are rolled. The probability that different numbers will appear on them is 

a) 1/6
b) 1/36
c) 15/36
d) none
NET-1 Maths

Number of triangles formed by 4 points when no 3 points are collinear is;

a) 4
b) 8
c) 6
d) 9
NET-2 Intelligence

Choose odd one out:

a) Telegram
b) Fax
c) Email
d) Electricity
NET-2 (2013)

Time seen in a clock of aeroplane from ground

a) Seems slower
b) Seems faster
c) Seems same as on ground
d) none
NET-2 Physics

If value of gravitational constant is changed what will be the effect on g;

a) increases
b) decreases
c) remains the same
d) insufficient data
NET-1 Physics

Star moving towards the earth will give:

a) Red shift
b) Blue shift
c) both
d) none
NET-2 Physics

At resonance, RLC circuit have impedance

a) capacitive
b) inductive
c) resistive
d) none
NET-2 Maths

A man complained police that robbers robbed his car. He gave police a five digit-code number PMZX5. How many cars should police check now;

a) 100
b) 120
c) 200
d) none
NET-2 (2013) Physics

An observer standing on a platform observes frequency of whistling train to be 2.2 kHz and 1.8kHz of the approaching and receding train. What is the speed of train

a) 30m/s
b) 20m/s
c) 10m/s
d) 60 m/s
NET-1 Physics

Two bodies having K.E in ratio 4:1 and masses in 1:4 have linear momentum in ratio

a) 1:1
b) 1:4
c) 3:2
d) none
NET-1 (2013) Physics

Two satellites are moving in same circular orbit they must have same

a) mass
b) K.E
c) angular momentum
d) speed
NET-2 Physics

Which of the following have longest wavelength

a) X-Rays
b) Infared rays
c) Radio waves
d) none
NET-2 (2013)

What is the eccentricity of earth:

a)1
b)<1
c)>1
d) none
NET-2 Physics

By bombarding alpha particles on Helium, which will emit:

a) Boron
b) Carbon
c) Proton
d) none
NET-2 Maths

Range of tan3x

a) [-3,3]
b) R
c) -3<x< 3
d) none

NUST QUESTION 2014 NET-2

Posted by: Unknown Posted date: 08:07 / comment : 0 , , , ,

NUST 
QUESTION 2014
NET-2



1.Diffraction effect is

a) more for a round edge
b) less for a round edge
c) more for a sharp edge
d) none of above

2.Which of the following have longest wavelength

a) X-Rays
b) Infared rays
c) Radio waves
d) none
3.Two satellites are moving in same circular orbit they must have same

a) mass
b) K.E
c) angular momentum,
d) speed
4.Two bodies having K.E in ratio 4:1 and masses in 1:4 have linear momentum in ratio

a) 1:1
b) 1:4
c) 3:2
d) none
5.An observer standing on a platform observes frequency of whistling train to be 2.2 kHz and 1.8kHz of the approaching and receding train. What is the speed of train

a) 30m/s
b) 20m/s
c) 10m/s
d) 60 m/s
6.By bombarding alpha particles on Helium, which will emit:

a) Boron
b) Carbon
c) Proton
d) none


7.Maxima in Young's experiment indicate:
a) a bright fringe
b) a dark fringe 
c) A constructive interference
d) both a and c
NET-1 Physics

8.A capacitor stores:

a) charge
b) current
c) both a and b
d) Voltage
NET-2 Physics

9.For a telescope:

a) fo>fe
b) fe<fo
c) fo=fe
d) none


10.In which process entropy remains constant

a) Adiabetic process
b) Isothermal process
c) Isobaric process
d) Isochloric process

11.The efficiency of Carnot Engine is maximum at:
a) 100 K
b) 0 K
c) 0 C 
d) none

12.Angle b/w rectangular co-ordinates of a vector 
a) 90
b) 180
c) They are mutually perpendicular
d) none

13.Gravity is maximum at ?

A) equator
B) poles
C) surface
D) none

14.ll of the following are units of energy except ? 

A) Erg
B) Kilowatt
C) Joule
D) Kilowatt hour


15.Two masses of 1 kg and 4 kg are moving with equal K.E . The ratio of their momentum are ?

A) 1:4
B) 4:1
C) 1:2
D) 2:1


16.A young's double slit set up for interference is shifted from water to air than fridgewidth 

A) increases
B) decreases
C) remains same
D) disappears

17.Percentage uncertainity in raidus 'r' is 2% . The percentage uncertainity in volume of sphere is ?

A) 4%
B) 6%
C) 8%
D) 9%

18.In interference pattern , Energy is ?

A) Created at the position of Maximum
B) Destroyed at the position of Minimum
C) Conserved but is redistributed
D) None

19.If R/Cp for a gas is 2/7 , the gas could be ?

A) Polyatomic
B) Heteroatomic
C) Diatomic
D) Monoatomic


20.In Elastic Collision

a) K.E is conserved
b) Momentum is conserved
c) Both K.E and P are conserved
d) none of these



21.Which waves don't carry energy

a) Mechanical waves
b) Sound waves
c) Light waves
d) Standing waves

 22.Child paradox is an example of? 

 A)time dilation 
b)mass variation 
c)comton effect 
d)length contraction


PHYSICS NUST

Posted by: Unknown Posted date: 12:12 / comment : 2 , , , ,

NUST NET QUESTION

PHYSICS 

1. 0's on right side of non- zero numbers are?
A . Significant
 B . non-significant 
C . sometimes significant and sometimes 
D . none of these 

2. What is the magnification when the image of an object through convex lens is formed at its Focal length?
A . 1 
B . 1.5 
C . 2 
D . 2.5 

3. Maxima in young's experiment indicate?
 A . bright bands 
B . constructive interference 
C . dark bands 
D . Both a and b 
 4. how much heat a 100 watt bulb will generate in 1 hour?
A . 0 joule 
B . 60 joule 
C . 3600 joule 
D . 360000 joule

 5. If y-component of a force acting in y direction is 6N the x-component will be 
A . 6N 
B . 12N 
C . zero 
D . none of these 
 6. Time seen from ground in clock of airplane?
 A . seems slower 
B . seems faster 
C . constant 
D . unpredictable

7. Resistance of RCL series circuit at resonance is? 
A . Xc
B . R 
C . Xl 
D . Xl x R x Xc

8. Power of RCL circuit at resonance is?
A . zero
 B . minimum 
C . maximum 
D . none of these

9. an emf of 10 v is observed in one coil when the current is changing at the rate of 5 As^-1 in the other coil. What is the mutual inductance of the coil?
A . 50H 
B . 40H 
C . 5H 
D . 2H

 10. an electron is placed between two charged plates the upper plate is positively charged and the lower plate is negative charged. The electron will
A . deflect downwards 
B . deflect upwards 
C . go straight 
D . none of these 

11. A spring clock is wound by a key. Which of following is true
A . neither elastic potential energy nor kinetic energy exists 
B . both elastic potential energy and kinetic energy exist 
C . kinetic energy exists whereas there's no elastic potential energy 
D . elastic potential energy exists whereas there's no kinetic energy 

12. Rate of change of momentum is
A . torque 
B . force 
C . time 
D . none of these

13. If V=100 is applied to RLC series circuit. If 200 watt power is dissipated by passing 4A current. Then in the capacitor 
A . Current leads by 90 
B . Current lags by 90 
C . Voltage lags by 60 
D . Voltage leads by 60

14. For V=Vosint find period
A . pie 
B . 2pie 
C . pie/2 
D . zero 

15. In interference energy ___ destroyed
A . May be 
B . will be 
C . can be 
D . cannot be 

 16. Speed of sound is greatest in
 A . glass 
B . water 
C . wood 
D . plastic

17. Speed of sound is greatest in 
A . plastic 
B . wood 
C . water 
D . copper 

 18. wave fronts coming from small light bulb
A . spherical 
B . cylindrical 
C . plane 
D . none of these 

 19. moving charge produces a
A . magnetic field 
B . electric field 
C . both a and b 
D . none of these 

 20. if the grating element is made 1/10th the resolving power will become
A . 1/100 times 
B . 1/10 times 
C . 100 times 
D . 10 times 

21. if 60 capacitors are connected in series and then in parallel what is the ratio of Cs/Cp=? 
A . 250 
B . 3600 
C . 1/60 
D . 1/3600 

22. source of light is
A . sun 
B . moon 
C . glass 
D . none of these 
 23. When wood is replaced by air as dielectric. The capacitance of capacitor 
A . decreases 
B . increases 
C . remains constant 
D . none of these 

24. at resonance RLC circuit has impedance
 A . inductive 
B . capacitive 
C . R/LC 
D . resistive 

25. Which of the following is not an example of periodic motion
 A . a man walking in street
 B . rolling ball 
C . a moving fan
D . vibratory motor
 26. energy of alpha and beta particles has the relation:
A . alpha > beta 
B . alpha < beta 
C . alpha=beta 
D . depends on source

27. Newton first law is applicable on 
I)body in motion II)body in rest 
A . I only 
B . II only 
C . neither a nor b 
D . both a and b 

 28. Two conducting objects, x and y having charge q on them exert force F on each other. now third conductor having charge - q is touched with x and removed, the new force between x and y is 
A . F 
B . F/2 
C . 2F 
D . zero 

29. which has the highest internal resistance 
A . refrigerator
B . 100 watt bulb 
C . tube light 
D . ceiling fan 

30. entropy is the measure of ________ of a system 
A . heat 
B . kinetic energy 
C . momentum 
D . disorder 

 31. scattering of photon by electron is called 
A . photoelectric effect 
B . pair production 
C . annihilation 
D . compton effect 

32. when the source moves towards an observer then its frequency 
A . increase 
B . decrease 
C . remain constant 
D . none of these 

 33. which of the following can’t be used as a dielectric in a capacitor 
A . wax 
B . iron 
C . air 
D . all of these 

34. in a pure resistive circuit current and voltage are 
A . in phase 
B . out of phase 
C . current leads 
D . voltage leads

35. the constant between I and V is 
A . R 
B . 1/R 
C . 2R 
D . none of these 

 36. when a body moves with the speed of light then its mass approaches to 
A . zero 
B . infinity 
C . remains same 
D . none of these 

37. Efficiency of the Carnot's cycle will be 100% if the absolute temp is 
A . +273K 
B . -273K 
C . 100K 
D . 0K 

 38. what happens to bulk of potential energy of a glass that falls from a table and breaks A . converted into kinetic energy 
B . wasted in air 
C . converted into sound 
D . consumed in breaking of glass 

39. the earth magnetic field deflects high velocity positive charge towards 
A . north 
B . south 
C . west 
D . east 

40. In Einstein's theory, the deflection of light is predicted to be exactly ____ ____ as great as it is according to Newton's theory 
A . Four times 
B . Thrice 
C . One and a half time 
D . Twice 

41. In hot day white clothes are worn because they are good 
A . absorbers 
B . emitters 
C . reflectors 
D . none of these 

42. Forces in nature always occur in 
A . triplet 
B . quadrupled 
C . isolation 
D . pair 
 43. In F= GMm/R the dimensions of G is? 
A . [M-1L+2T-2] 
B . [M-1L+3T-2] 
C . [M-1L+2T-3] 
D . none of these 

44. Mass of body is 10kg . What will be its weight if body moves 500*10^6 m away from the surface of earth? 
A . 9.8 
B . 0.98 
C . 0.098 
D . equivalent to zero 

 45. blue colored source is seen Red if 
A . source is moving away from observer 
B . observer is moving away from source 
C . gamma rays effect is observed 
D . none of these 

46. a ballistic missile is 
A . unpowered 
B . unguided 
C . both a and b 
D . none of these 

 47. Debroglie wavelength for an electron and proton are Le and Lp respectively. And frequencies are Fe and Fp then correct one is 
A . Fe < Fp , Le > Lp 
B . Le < Lp , Fp < Fe 
C . Le < Lp , Fe = Fp 
D . Le > Lp , Fe > Fp 

 48. light rays coming from the tube light are 
A . plane 
B . spherical 
C . cylindrical 
D . none of these 

49. when some charge is given to a soap bubble it 
A . increases in size 
B . decreases in size 
C . remain same 
D . collapses


50. Which one has the more resistance 500 watt or 40 watt? 
A . 40 watt 
B . 500 watt 
C . both have equal 
D . depends on teh volatge source
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