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

Ball pen function on the principle of

Question # 2

In which of the following states does the incandescent substance give continuous spectrum?

Question # 3

Bernoulli's equation is based upon law of conservation

Question # 4

The motion without consideration of its cause is studied in

Question # 5

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

Question # 6

A moving charge will gain energy due to the application of

Question # 7

The angle between rectangular components of a vector is

Question # 8

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

Question # 9

A fly is sitting on the objective of a telescope pointed towards the moon.
What effect is expected on the photography of the moon taken through the telescope?

Question # 10

The dot product of two vectors is negative when

Question # 11

The initial velocity of a body moving along a straight line in 7 m/s. It has a uniform acceleration of 4 m/s2. The distance covered by the body in the 5th second of its motion is

Question # 12

A wire is stretched to double of its length. The strain is

Question # 13

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

Question # 14

A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if

Question # 15

Which of the following is not thermo dynamical function?

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
A. 200V, 50 Hz
B. 2V, 50 Hz
C. 200V, 500 Hz
D. 2V, 5 Hz
2 Two sources of sound are said to be coherent if
A. They produce sounds of equal intensity
B. They produce sounds of equal frequency
C. They produce sound waves vibrating with the same phase
D. They produce sound waves with zero or constant phase different all instant of time
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 When light wavelength 300 nm (nanometer) falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, however, light of 600 nm wavelength is sufficient for creating photoemission. What is the ratio of the work functions of the two emitters?
A. 1 : 2
B. 2 : 1
C. 4 : 1
D. 1 : 4
5 A cable breaks if stretched by more than 2 mm. It is cut into two equal parts. How much either part can be stretched without breaking?
A. 0.25 m
B. 0.5 m
C. 1 mm
D. 2 mm
6 Boyle's law is applicable in
A. Isochoric process
B. Isothermal process
C. Isobaric process
D. Isotonic process
7 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
8 Velocity of sound in a diatomic as is 300 m/sec, what is its rms velocity?
A. 400 m/sec
B. 40 m/sec
C. 430 m/sec
D. 300 m/sec
9 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
10 In an A.C. circuit, a resistance of R ohm is connected in series with an inductance L. If phase angle between voltage and current be 45°, the value of inductive reactance will be
A. R/4
B. R/2
C. R
D. Cannot be found with the given data

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