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

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 # 2

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

Question # 3

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 # 4

The dot product of two vectors is negative when

Question # 5

The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is:

Question # 6

Shunt required in an ammeter of resistance R to decrease its deflection from 30 ampere to 10 ampere is

Question # 7

A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot flies at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

Question # 8

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

Question # 9

At 0°K which of the following properties of a gas will be zero?

Question # 10

The product of the pressure and volume of an ideal gas is

Question # 11

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

Question # 12

When we apply reverse bias to a junction diode, it

Question # 13

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

Question # 14

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

Question # 15

For production of beats the two sources must have

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 When the length of a microscope tube increase, its magnifying power
A. Decreases
B. Increases
C. Does not Change
D. May increase or decrease depending on the observer and the place of observation
2 Which one of the following is a simple harmonic motion?
A. Wave moving through a string fixed at both ends
B. Earth spinning about its own axis
C. Ball bouncing between two rigid vertical walls
D. Particle moving in a circle with uniform speed
3 The motion without consideration of its cause is studied in
A. Kinematics
B. Mechanics
C. Statics
D. Modern Physics
4 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
5 Centre of mass is a point
A. Which is geometric centre of a body
B. From which distance of particles are same
C. Where the whole mass of the body is supposed to be centered
D. Which is the origin of reference frame
6 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
7 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
8 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
9 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
10 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
A. 11%
B. 8%
C. 5%
D. 1%

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