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

Huygen's wave theory of light cannot explain

Question # 3

A moving charge will gain energy due to the application of

Question # 4

The dot product of two vectors is negative when

Question # 5

A photocell with a constant p.d. of V volt across it illuminated by a point source from a distance of 25 cm. When the source is moved to a distance of 1m, the electrons emitted by the photocell

Question # 6

To increase the magnification of a telescope

Question # 7

With the increase of temperature viscosity

Question # 8

Two forces are acting together on an object. The magnitude of their resultant is minimum when the angle between the force is

Question # 9

The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is:

Question # 10

Which of the following four statement is false?

Question # 11

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 12

A photoelectric cell coverts

Question # 13

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 # 14

A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen

Question # 15

The angle between rectangular components of a vector is

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 A moving charge will gain energy due to the application of
A. Electric field
B. Magnetic field
C. Both of these
D. None of these
2 An ideal choked (used along with fluorescent tube) would be
A. A pure resistor
B. A pure capacitor
C. A pure inductor
D. A combination of an inductor and a capacitor
3 Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)
A. 3.2 x 10-21 J
B. 3.2 x 10-19 J
C. 7 x 10-25 J
D. 9 x 10-32 J
4 The direction of induced current is such that it opposes the very cause that has produced it. This is the law of
A. Lenz
B. Faraday
C. Kirchoff
D. Fleming
5 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
6 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
7 The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is:
A. Mass
B. Length
C. Time
D. None
8 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
A. 1.92 N
B. 19.2 N
C. 12 N
D. 0.192 N
9 The incorrect statement regarding the lines of force of the magnetic field B is
A. Magnetic intensity is a measure of lines of force passing through unit area held normal to it
B. Magnetic lines of force form a close curve
C. Inside a magnet, its magnetic lines of force move from north pole of a magnet towards its south pole
D. Due to a magnet magnetic lines of force never cut each other
10 What remains constant when the earth revolves around the sun?
A. Angular momentum
B. Linear momentum
C. Angular kinetic energy
D. Linear kinetic energy

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