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

One cannot see fog because

Question # 2

Band spectrum is produced by

Question # 3

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

Question # 4

In a simple harmonic motion the kinetic energy (KE) and the potential energy (PE), are such that throughout the motion

Question # 5

A particle moves along a circular path under the action of a force. The work done by the force is

Question # 6

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

Question # 7

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is:

Question # 8

Angular momentum is

Question # 9

A particle is moving in a uniform magnetic filed, then

Question # 10

The angle between rectangular components of a vector is

Question # 11

Blood has a density

Question # 12

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

Question # 13

In an L-R circuit, time constant is that time in which current grows from zero to the value

Question # 14

A photocell with a constant p.d. of V volt across it illuminated by a point source from a distance of 25 cm. When the source is moved to a distance of 1m, the electrons emitted by the photocell

Question # 15

The direction of induced current is such that it opposes the very cause that has produced it. This is the law of

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then
A. R1=2R2
B. R2=2R1
C. R2=4R1
D. R1=4R2
2 Quantity that remains unchanged in a transformer is
A. Voltage
B. Current
C. Frequency
D. None of these
3 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
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
A. 48A
B. 24V
C. 12V
D. 6V
5 Radio waves of constant amplitude can be generated with
A. Rectifier
B. Filter
C. FET
D. oscillator
6 Which of the following particles would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field?
A. Proton
B. Electron
C. He+
D. Li+
7 The structure of solids is investigated by using
A. Cosmic Rays
B. X-rays
C. Intra red Radiation
D. γ-rays
8 A motorist travels A to B at a speed at 40 km/h and returns at speed of 60 km/h. His average speed will be
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h
9 Ball pen function on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tension
10 If the dot product of two non-zero vectors vanishes, the vectors will be
A. In the same direction
B. Opposite to each other
C. Perpendicular to each other
D. Zero

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