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 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

Question # 2

Copper and germanium are cooled to 70K from room temperature, then

Question # 3

Two sources of sound are said to be coherent if

Question # 4

The unit of electric current 'ampere' is the amount of current flowing through each of two parallel wires 1 m apart and of infinite length will give rise to a force between them equal to

Question # 5

A piece of fuse wire melts when a current of 15 ampere flows through it.
With this current, if it dissipates 22.5 W, the resistance of fuse wire will be

Question # 6

At constant volume temperature is increased. Then

Question # 7

The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

Question # 8

Which of the following is a scalar quantity?

Question # 9

The nucleus 6C12 absorbs an energetic neutron and emits a beta particle (β). The resulting nucleus is

Question # 10

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

Question # 11

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 # 12

In case of p-n junction diode, at high value of reverse bias, the current rises sharply. The value of reverse bias is known as:

Question # 13

A man pushes a wall but fails to displace it. He does:

Question # 14

The magnetic moment of a circular coil carrying current is

Question # 15

Shunt required in an ammeter of resistance R to decrease its deflection from 30 ampere to 10 ampere is

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if
A. The mass of the pendulum is increased
B. The mass of the pendulum is decreased
C. The length of the pendulum is increased
D. The length of the pendulum is decreased
2 What will be the duration of the day and night (in hour) if the diameter of the earth is suddenly reduced to half its original value, the mass remaining constant?
A. 12
B. 6
C. 3
D. 2
3 The angle between rectangular components of a vector is
A. 0°
B. 60°
C. 90°
D. 120°
4 Which of the following sources give discrete emission spectrum?
A. Incandescent electric bulb
B. Sun
C. Mercury vapour lamp
D. Candle
5 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
6 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
7 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
8 The number of translation degrees of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6
9 The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is:
A. Mass
B. Length
C. Time
D. None
10 In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie
A. Ultraviolet
B. Infrared
C. Visible
D. X-ray

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