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

Mechanical waves on the surfaces of a liquid are

Question # 2

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

Question # 3

In a simple harmonic motion the kinetic energy (KE) and the potential energy (PE), are such that throughout the motion

Question # 4

Which quantity is increased in step-down transformer?

Question # 5

What remains constant when the earth revolves around the sun?

Question # 6

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 # 7

A conducting wire is drawn to double its length. Final resistivity of the material will be

Question # 8

The essential distinction between X-rays andγ-rays is that

Question # 9

A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if

Question # 10

Who explained the origin of the Fraunhoffer lines?

Question # 11

A particle moves along a circular path under the action of a force. The work done by the force is

Question # 12

Light appears to travel in straight lines since

Question # 13

Which of the following is not thermo dynamical function?

Question # 14

A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is

Question # 15

A p-n junction has a thickness of the order of:

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then
A. R1=2R2
B. R2=2R1
C. R2=4R1
D. R1=4R2
2 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
3 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
4 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
5 A particle moving in a magnetic field has increase in its velocity, then its radius of the circle
A. Decreases
B. Increases
C. Remains the same
D. Becomes half
6 The volt/metre is the unit of:
A. Potential
B. Work
C. Force
D. Electric field intensity
7 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
8 For obtaining appreciable extension, the wire should be
A. Short and thin
B. Long and thin
C. Short and thick
D. Long and thick
9 Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved
A. 1.92 N
B. 19.2 N
C. 12 N
D. 0.192 N
10 Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)
A. 3.2 x 10-21 J
B. 3.2 x 10-19 J
C. 7 x 10-25 J
D. 9 x 10-32 J

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