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

Planck's constant has the dimensions of:

Question # 2

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 # 3

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is

Question # 4

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 # 5

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 # 6

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

Question # 7

How much water a pump of 2kW can raise in one minute to a height of 10 m, take g = 10 m/s2?

Question # 8

One cannot see fog because

Question # 9

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

Question # 10

The angle between rectangular components of a vector is

Question # 11

The percentage errors in the measurements of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed

Question # 12

Huygen's wave theory of light cannot explain

Question # 13

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

Question # 14

The incorrect statement regarding the lines of force of the magnetic field B is

Question # 15

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

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
2 Light appears to travel in straight lines since
A. It is not absorbed by the atmosphere
B. It is reflected by the atmosphere
C. Its wavelength is very small
D. Its velocity is very large
3 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
4 In which of the following states does the incandescent substance give continuous spectrum?
A. Vapours in atomic state
B. Vapours in molecular state
C. Solid or fluid in bulk state
D. Solid or fluid in plasma state
5 The incorrect statement regarding the lines of force of the magnetic field B is
A. Magnetic intensity is a measure of lines of force passing through unit area held normal to it
B. Magnetic lines of force form a close curve
C. Inside a magnet, its magnetic lines of force move from north pole of a magnet towards its south pole
D. Due to a magnet magnetic lines of force never cut each other
6 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
A. Both the trajectories will be equally curved
B. The proton trajectory will be less curved than the electron trajectory
C. The electron trajectory will be less curved than the proton trajectory
D. The relative curving of the trajectories will be dependent on the value of the initial kinetic energy
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 The mass defect for the nucleus of helium is 0.0303 a.m.u. What is the binding energy per nucleon for helium in MeV?
A. 28
B. 7
C. 4
D. 1
9 Which one of the following phenomena is not explained by Huygen's construction of wavefront?
A. Refraction
B. Reflection
C. Diffraction
D. Origin of spectra
10 All of the following statements are correct except
A. The total focal length of astronomical telescope is the sum of the focal lengths of its two lenses
B. The image formed by the astronomical telescope is always erect because the effect of the combination of the two lenses is divergent
C. The magnification of an astronomical telescope can increases by decreasing the focal length of the eyepiece
D. The magnifying power of the refracting type of astronomical telescope is the ratio of the focal length of the objective to that of the eye piece

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