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

Angular momentum is

Question # 2

Two sources of sound are said to be coherent if

Question # 3

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 # 4

Which of the following is the only vector quantity?

Question # 5

In a Millikan's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is

Question # 6

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 # 7

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

Question # 8

Steel is preferred for making springs over copper. Why?

Question # 9

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

Question # 10

A force of 10N is acting along y-axis. Its component along x-axis is

Question # 11

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

Question # 12

For production of beats the two sources must have

Question # 13

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 14

A body of mass 2 kg is thrown up vertically with K.E. of 490 joules. If the acceleration due to gravity is 9.8 m/s2, the height at which the K.E, of the body becomes half its original value is given by:

Question # 15

Band spectrum is produced by

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 A motorist travels A to B at a speed at 40 km/h and returns at speed of 60 km/h. His average speed will be
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h
2 Boyle's law is applicable in
A. Isochoric process
B. Isothermal process
C. Isobaric process
D. Isotonic process
3 The structure of solids is investigated by using
A. Cosmic Rays
B. X-rays
C. Intra red Radiation
D. γ-rays
4 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
5 The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be
A. 1
B. 3/4
C. 7/8
D. 5/8
6 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
7 A capacitor acts as an infinite resistance for
A. AC
B. DC
C. Both AC and DC
D. Neither AC nor DC
8 The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90°with the force of the smaller magnitude, then their magnitudes are:
A. 3, 15
B. 4, 14
C. 5, 13
D. 6, 12
9 A prism splits a beam of white light into its seven constituent colors. This is so because
A. Phase of different colors is different
B. Amplitude of different colors is different
C. Energy of different colors is different
D. Velocity of different colors is different
10 Absolute temperature can be calculated by
A. Mean square velocity
B. Motion of the molecule
C. Both A and B
D. None of these

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