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 time period of a simple pendulum is 2 seconds. If its length is increased by 4 times, then its period becomes

Question # 2

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

Question # 3

Planck's constant has the dimensions of:

Question # 4

Which one of the following phenomena is not explained by Hugen's construction of wavefront?

Question # 5

The motion without consideration of its cause is studied in

Question # 6

A 2 kg body and a 3 kg body have equal momentum. If the kinetic energy of 3 kg body is 10 J, the KE of 2 kg body will be

Question # 7

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90°with the force of the smaller magnitude, then their magnitudes are:

Question # 8

A body moving in circular motion with constant speed has

Question # 9

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

Question # 10

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

Question # 11

When sound waves travel from air to water which of these remains constant?

Question # 12

The twinkling of stars is due to

Question # 13

When n-type of semiconductor is heated

Question # 14

The smooth or steady stream-line flow is know as

Question # 15

A person standing on a rotating platform has his hands lowered. He suddenly outstretches his arms. The angular momentum

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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 Quantity that remains unchanged in a transformer is
A. Voltage
B. Current
C. Frequency
D. None of these
3 A wire is stretched to double of its length. The strain is
A. 2
B. 1
C. zero
D. 0.5
4 At constant volume temperature is increased. Then
A. Collision on walls will be less
B. Number of collisions per unit time will increase
C. Collisions will be in straight lines
D. Collisions will not change
5 Who explained the origin of the Fraunhoffer lines?
A. Fraunhoffer
B. Kirchhoff
C. Fresnel
D. Snell
6 When a hydrogen atom is bombarded, the atom is excited to the n = 4 state of hydrogen atom. The energy released when the atom falls from n = 4 state to the ground state is
A. 1.275 eV
B. 12.75 eV
C. 5 eV
D. 8 eV
7 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
8 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
9 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
10 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
A. 7.20 N
B. 11.25 N
C. 22.50 N
D. 45.00

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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