NAT IIP Physical Science Physics Preparation Online Test for Pakistani Students

MCQ's Test For NAT II Physical Science Physics

Try The MCQ's Test For NAT II Physical Science Physics

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NAT II Physical Science Physics

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Question # 1

The angle between rectangular components of a vector is

Question # 2

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

Question # 3

There are discrete energy levels in atoms. It was first experimentally demonstrated by

Question # 4

The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be

Question # 5

The product of the pressure and volume of an ideal gas is

Question # 6

At 0°K which of the following properties of a gas will be zero?

Question # 7

Which of the following particles would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field?

Question # 8

Which of the modulus of elasticity is involved in compression a rod to decrease its length?

Question # 9

A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when:

Question # 10

Which of the following sources give discrete emission spectrum?

Question # 11

Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)

Question # 12

A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is

Question # 13

The length of a telescope is 36 cm. The focal lengths of its lenses can be

Question # 14

For production of beats the two sources must have

Question # 15

The average binding energy of a nucleus inside an atomic nucleus is about

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 When boron is added as an impurity to silicon, the resulting material is.
A. n type conductor
B. n type semiconductor
C. p-type conductor
D. p-type semiconductor
2 A conducting wire is drawn to double its length. Final resistivity of the material will be
A. Double of the original one
B. Half of the original one
C. One-fourth of the original one
D. Same as original one
3 In a simple harmonic motion the kinetic energy (KE) and the potential energy (PE), are such that throughout the motion
A. KE remains constant
B. PE remains constant
C. KE/PE is constant
D. KE+PE remains constant
4 The sieman is the SI unit of
A. Resistance
B. Specific Resistance
C. Conductance
D. Inductance
5 According to the Hooke's law the force required to change the length of a wire by 'I' is proportional to
A. I-2
B. I-1
C. I
D. I2
6 A voltmeter has resistance of 2000 ohms and it can measure up to 2V. If we want to increase its range to 10V then required resistance in series will be
A. 2000 ohm
B. 4000 ohm
C. 6000 ohm
D. 8000 ohm
7 A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts:
A. 1310 W
B. 670 W
C. 810 W
D. 1210 W
8 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
9 A capacitor acts as an infinite resistance for
A. AC
B. DC
C. Both AC and DC
D. Neither AC nor DC
10 The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be
A. 1
B. 3/4
C. 7/8
D. 5/8

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