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

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?

Question # 2

The average binding energy of a nucleus inside an atomic nucleus is about

Question # 3

When the length of a microscope tube increase, its magnifying power

Question # 4

According to classical theory the proposed circular path of an electron in Rutherford model of atom will be

Question # 5

Which quantity is increased in step-down transformer?

Question # 6

A photoelectric cell coverts

Question # 7

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Question # 8

Which of the following sources give discrete emission spectrum?

Question # 9

Steel is preferred for making springs over copper. Why?

Question # 10

Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then

Question # 11

When a hydrogen atom is bombarded, the atom is excited to the n = 4 state of hydrogen atom. The energy released when the atom falls from n = 4 state to the ground state is

Question # 12

The modulus of rigidity of a liquid is

Question # 13

The time period of a simple pendulum is 2 seconds. If its length is increased by 4 times, then its period becomes

Question # 14

If the earth were to rotate faster, than its present speed the weight of an object will

Question # 15

Two forces of 10N and 15N are acting simultaneously on an object in the same direction. Their resultant is

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 If a diamagnetic substance is brought near north or south pole of a bar magnet it is
A. Attracted by the poles
B. Repelled by the poles
C. Repelled by north pole and attracted by the south pole
D. Attracted by the north pole and repelled by the south pole
2 As the electron in Bohr orbit of hydrogen atom passes from stat n = 2 to n = 1, the kinetic energy K and potential energy U change as
A. K two fold, U also two fold
B. K four fold, U also four fold
C. K four fold, U two fold
D. K two fold, U four fold
3 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
4 A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen
A. Half the image will disappear
B. No change either in size or in intensity
C. Intensity of image will increase
D. Intensity of the image will decrease
5 Two forces of 10N and 15N are acting simultaneously on an object in the same direction. Their resultant is
A. Zero
B. 5N
C. 25N
D. 150N
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 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
8 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
9 The number of translation degrees of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6
10 The sieman is the SI unit of
A. Resistance
B. Specific Resistance
C. Conductance
D. Inductance

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