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

The dot product of two vectors is negative when

Question # 2

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

Question # 3

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

Question # 4

The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 10. If 240 volts ac are applied to the primary, the output the secondary will be

Question # 5

Choose the correct statement

Question # 6

Mechanical waves on the surfaces of a liquid are

Question # 7

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 8

Which of the following lists of physical quantities consists only of vectors:

Question # 9

The magnetic moment of a circular coil carrying current is

Question # 10

The number of translation degrees of freedom for a diatomic gas is

Question # 11

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting. Calculate the focal length of objective

Question # 12

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 # 13

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10-19N, is

Question # 14

Velocity of sound in a diatomic as is 300 m/sec, what is its rms velocity?

Question # 15

Ball pen function on the principle of

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The sieman is the SI unit of
A. Resistance
B. Specific Resistance
C. Conductance
D. Inductance
2 The twinkling of stars is due to
A. The fact that stars do not emit light continuously
B. The refractive index of the earth's atmosphere fluctuate
C. Intermittent absorption of star light by its own atmosphere
D. None of these
3 Which of the following lists of physical quantities consists only of vectors:
A. Time, temperature, velocity
B. Force, volume, momentum
C. Velocity, acceleration, mass
D. Force, acceleration, velocity
4 The conductivity of a superconductor is
A. Infinite
B. Very large
C. Very small
D. Zero
5 For obtaining appreciable extension, the wire should be
A. Short and thin
B. Long and thin
C. Short and thick
D. Long and thick
6 The essential distinction between X-rays andγ-rays is that
A. γ-rays have smaller wavelength than X-rays
B. γ-rays emanate from nucleus while X-rays emanate from outer part of the atom
C. γ-rays have greater ionizing power than X-rays
D. γ-rays are more penetrating than X-rays
7 What remains constant when the earth revolves around the sun?
A. Angular momentum
B. Linear momentum
C. Angular kinetic energy
D. Linear kinetic energy
8 Band spectrum is produced by
A. H
B. He
C. H2
D. Na
9 A particle moving in a magnetic field has increase in its velocity, then its radius of the circle
A. Decreases
B. Increases
C. Remains the same
D. Becomes half
10 Copper and germanium are cooled to 70K from room temperature, then
A. Resistance of copper increases while that of germanium decreases
B. Resistance of copper decreases while that of germanium increases
C. Resistance of both decreases
D. Resistance of both increases

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