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

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 2

Ball pen function on the principle of

Question # 3

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

Question # 4

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

Question # 5

For obtaining appreciable extension, the wire should be

Question # 6

Energy is stored in the choke coil in the form of

Question # 7

The mass defect for the nucleus of helium is 0.0303 a.m.u. What is the binding energy per nucleon for helium in MeV?

Question # 8

When we apply reverse bias to a junction diode, it

Question # 9

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie

Question # 10

The dot product of two vectors is negative when

Question # 11

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

Question # 12

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 # 13

In Young's experiment, two coherent sources are placed 0.90 mm apart and the fringes are observed one metre away. If its produces the second dark fringe at a distance of 1 mm from the central fringe, the wavelength of monochromatic light used would be

Question # 14

To explain his theory Bohr used

Question # 15

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

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The nuclear model of atom was proposed by
A. J.J Thomson
B. E. Rutherford
C. Neil Bohr
D. Summerfield
2 Planck's constant has the dimensions of:
A. Energy
B. Momentum
C. Frequency
D. Angular momentum
3 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
4 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
5 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
6 Which one of the following phenomena is not explained by Huygen's construction of wavefront?
A. Refraction
B. Reflection
C. Diffraction
D. Origin of spectra
7 If the metal bob is a simple pendulum is replaced by a wooden bob, then its time period will
A. Increas
B. Decreases
C. Remain the same
D. First A then B
8 Band spectrum is produced by
A. H
B. He
C. H2
D. Na
9 Which quantity is increased in step-down transformer?
A. Current
B. Voltage
C. Power
D. Frequency
10 To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
A. Parallel
B. Antiparallel
C. At angle 60°
D. Perpendicular to each other

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