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

The mass of a proton is 1847 times that of an electron. An electron and a proton are projected into a uniform electric field in a direction at right angles to the direction of the field with the same initial kinetic energy.The

Question # 2

Surface tension of water is due to

Question # 3

At 0°K which of the following properties of a gas will be zero?

Question # 4

The conductivity of a superconductor is

Question # 5

An ideal choked (used along with fluorescent tube) would be

Question # 6

Velocity of sound in a diatomic as is 300 m/sec, what is its rms velocity?

Question # 7

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 # 8

To increase the magnification of a telescope

Question # 9

A photoelectric cell coverts

Question # 10

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

Question # 11

A moving charge will gain energy due to the application of

Question # 12

Energy is stored in the choke coil in the form of

Question # 13

At constant volume temperature is increased. Then

Question # 14

Electrons in the atom are held in the atom due to

Question # 15

Two sources of sound are said to be coherent if

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The contrast in the fringes in any interference pattern depends on
A. Fringe width
B. Intensity ratio of the sources
C. Distance between the slits
D. Wavelength
2 What is the average energy of N molecules of monoatomic gas?
A. 1/2 NKT
B. NKT
C. 3/2 NKT
D. 5/2 NKT
3 Centre of mass is a point
A. Which is geometric centre of a body
B. From which distance of particles are same
C. Where the whole mass of the body is supposed to be centered
D. Which is the origin of reference frame
4 A point charge Q is placed at the mid-point of a line joining two charges, 4q and q. If the net force on charge q is zero, then Q must be equal to
A. -q
B. +q
C. -2q
D. +4q
5 If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be
A. Increasing by a factor of 2
B. Decreasing by a factor of 2
C. Decreasing by a factor of 4
D. Unchanged
6 A particle is moving in a uniform magnetic filed, then
A. its momentum changes but total energy remains the same
B. Both momentum and total energy remains the same
C. Both changes
D. Total energy change but momentum remains
7 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
A. 1 N/m
B. 2 x 10-7N/m
C. 1 x 10-2N/m
D. 4 x 102N/m
8 A force of 10N is acting along y-axis. Its component along x-axis is
A. 10N
B. 20N
C. 100N
D. Zero N
9 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
10 Angular momentum is
A. Vector (axial)
B. Vector (polar)
C. Scalar
D. None of these

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