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

Surface tension of water is due to

Question # 2

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

Question # 3

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

Question # 4

Which of the following sources give discrete emission spectrum?

Question # 5

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

Question # 6

According to Stoke's law, drag force depends on

Question # 7

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

Question # 8

The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be

Question # 9

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

Question # 10

According to the Hooke's law the force required to change the length of a wire by 'I' is proportional to

Question # 11

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

Question # 12

The dimensional formula of torque is:

Question # 13

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 # 14

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

Question # 15

A boy is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Surface tension of water is due to
A. Inter molecular attractions
B. Intermolecular spaces
C. Inter molecular repulsion
D. None of above
4 At 0°K which of the following properties of a gas will be zero?
A. Kinetic energy
B. Potential energy
C. Vibrational energy
D. Density
5 What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
A. 4 : 5
B. 7 : 9
C. 16 : 25
D. 1 : 1
6 In a simple harmonic motion the kinetic energy (KE) and the potential energy (PE), are such that throughout the motion
A. KE remains constant
B. PE remains constant
C. KE/PE is constant
D. KE+PE remains constant
7 A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts:
A. 1310 W
B. 670 W
C. 810 W
D. 1210 W
8 To make the frequency double of an oscillator, we have to
A. Double the mass
B. Half the mass
C. Quadruple the mass
D. Reduce the mass to one fourth
9 The dimensional formula for the modulus of elasticity is same as that for:
A. Stress
B. Strain
C. Velocity
D. Surface tension
10 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
A. 7.20 N
B. 11.25 N
C. 22.50 N
D. 45.00

Test Questions

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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