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

According to Stoke's law, drag force depends on

Question # 2

A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts:

Question # 3

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?

Question # 4

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

Question # 5

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

Question # 6

One cannot see fog because

Question # 7

The nuclear model of atom was proposed by

Question # 8

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 9

In a simple harmonic motion (SHM), which of the following does not hold?

Question # 10

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 # 11

Mechanical waves on the surfaces of a liquid are

Question # 12

A cable that can support a load W is cut into two equal parts. The maximum load that can be supported by either part is:

Question # 13

According to the Hooke's law the force required to change the length of a wire by 'I' is proportional to

Question # 14

What is the average energy of N molecules of monoatomic gas?

Question # 15

A sun rise or sun set, the sun looks reddish because:

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 To explain his theory Bohr used
A. Conservation of linear momentum
B. Conservation of angular momentum
C. Conservation of quantum frequency
D. Conservation of energy
2 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
A. 60 x 10-4cm
B. 10 x 10-4cm
C. 10 x 10-5cm
D. 6 x 10-5cm
3 In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie
A. Ultraviolet
B. Infrared
C. Visible
D. X-ray
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 In a simple harmonic motion (SHM), which of the following does not hold?
A. To force on the particle is maximum at the ends
B. The acceleration in minimum at the mean position
C. The potential energy is maximum at the mean position
D. The kinetic energy is maximum at the mean position
6 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
7 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
8 The henry is the unit for
A. Resistance
B. Magnetic flux
C. Magnetic field
D. Inductance
9 Surface tension of water is due to
A. Inter molecular attractions
B. Intermolecular spaces
C. Inter molecular repulsion
D. None of above
10 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

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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