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

A p-n junction has a thickness of the order of:

Question # 2

A 220 V, 50 Hz. A.C. source is connected to an inductance of 0.2 H and a resistance of 20 ohm in series. What is the current in the circuit?

Question # 3

The incorrect statement regarding the lines of force of the magnetic field B is

Question # 4

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

Question # 5

A fly is sitting on the objective of a telescope pointed towards the moon.
What effect is expected on the photography of the moon taken through the telescope?

Question # 6

A boy is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 7

In a simple harmonic motion (SHM), which of the following does not hold?

Question # 8

If the earth were to rotate faster, than its present speed the weight of an object will

Question # 9

According to Stoke's law, drag force depends on

Question # 10

Surface tension of water is due to

Question # 11

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 # 12

Which of the following is not thermo dynamical function?

Question # 13

The structure of solids is investigated by using

Question # 14

The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

Question # 15

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

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Boyle's law is applicable in
A. Isochoric process
B. Isothermal process
C. Isobaric process
D. Isotonic process
2 Energy is stored in the choke coil in the form of
A. Heat
B. Magnetic energy
C. Electric energy
D. Electro-magnetic energy
3 The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an a.c. supply of 20 V, 50 Hz. The secondary will have an output of
A. 200V, 50 Hz
B. 2V, 50 Hz
C. 200V, 500 Hz
D. 2V, 5 Hz
4 Angular momentum is
A. Vector (axial)
B. Vector (polar)
C. Scalar
D. None of these
5 A sun rise or sun set, the sun looks reddish because:
A. The sun is coldest at these times
B. Of the effects of reflection and refraction
C. The sun is hottest at these times
D. Of the scattering of light
6 The dimensional formula of torque is:
A. [ML2T-2]
B. {MLT-2]
C. [ML-1T-2]
D. [ML-2T-2]
7 The dot product of two vectors is negative when
A. They are parallel vectors
B. They are anti-parallel vectors
C. They are perpendicular vectors
D. None of the above is correct
8 The angle between rectangular components of a vector is
A. 0°
B. 60°
C. 90°
D. 120°
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 Absolute temperature can be calculated by
A. Mean square velocity
B. Motion of the molecule
C. Both A and B
D. None of these

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