NAT IIP Physical Science Physics Preparation Online Test for Pakistani Students

MCQ's Test For NAT II Physical Science Physics

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NAT II Physical Science Physics

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Question # 1

When sound waves travel from air to water which of these remains constant?

Question # 2

A force of 10N is acting along y-axis. Its component along x-axis is

Question # 3

The part of a transistor which is heavily doped to produce large number of majority carriers is

Question # 4

A bullet is shot from a rifle. As a result the rifle recoils. The kinetic energy of rifle as compared to that of bullet is

Question # 5

When we apply reverse bias to a junction diode, it

Question # 6

How much water a pump of 2kW can raise in one minute to a height of 10 m, take g = 10 m/s2?

Question # 7

If the metal bob is a simple pendulum is replaced by a wooden bob, then its time period will

Question # 8

The peak voltage in 220 volt A.C. supply is nearly

Question # 9

The force between two charges 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

Question # 10

Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved

Question # 11

When boron is added as an impurity to silicon, the resulting material is.

Question # 12

What is the average energy of N molecules of monoatomic gas?

Question # 13

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 14

In an L-R circuit, time constant is that time in which current grows from zero to the value

Question # 15

Bernoulli's equation is based upon law of conservation

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Electrons in the atom are held in the atom due to
A. Coulomb forces
B. Nuclear forces
C. Gravitational forces
D. Van der Waal's forces
2 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
3 A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot flies at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to
A. 12 s
B. 8 s
C. 15 s
D. 10 s
4 The length of a telescope is 36 cm. The focal lengths of its lenses can be
A. 30 cm, 6 cm
B. -30 cm, -6 cm
C. 30 cm, -6cm
D. -30cm, 6cm
5 If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue light of the same intensity
A. Fringe width will decrease
B. Fringe width will increase
C. The fringe width will remain unchanged
D. Fringes will becomes less intense
6 When n-type of semiconductor is heated
A. Number of electrons increases while that of holes decreases
B. Number of holes increases while that of electron decreases
C. Number of electrons and holes remains same
D. Number of electrons and holes increases equally
7 A body moving in circular motion with constant speed has
A. Constant velocity
B. Constant acceleration
C. Constant kinetic energy
D. Constant displacement
8 Which of the modulus of elasticity is involved in compression a rod to decrease its length?
A. Young's modulus
B. Bulk modulus
C. Modulus of rigidity
D. None of the above
9 Energy is stored in the choke coil in the form of
A. Heat
B. Magnetic energy
C. Electric energy
D. Electro-magnetic energy
10 The number of translation degrees of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6

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