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

When light wavelength 300 nm (nanometer) falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, however, light of 600 nm wavelength is sufficient for creating photoemission. What is the ratio of the work functions of the two emitters?

Question # 2

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 3

The nuclear model of atom was proposed by

Question # 4

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

Question # 5

Huygen's wave theory of light cannot explain

Question # 6

The magnetic moment of a circular coil carrying current is

Question # 7

When boron is added as an impurity to silicon, the resulting material is.

Question # 8

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 # 9

A voltmeter has resistance of 2000 ohms and it can measure up to 2V. If we want to increase its range to 10V then required resistance in series will be

Question # 10

The volt/metre is the unit of:

Question # 11

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

Question # 12

The dot product of two vectors is negative when

Question # 13

For production of beats the two sources must have

Question # 14

Which of the following is a scalar quantity?

Question # 15

The modulus of rigidity of a liquid is

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Which one of the following phenomena is not explained by Hugen's construction of wavefront?
A. Refraction
B. Reflection
C. Diffraction
D. Origin of sepectra
2 A capacitor acts as an infinite resistance for
A. AC
B. DC
C. Both AC and DC
D. Neither AC nor DC
3 Radio waves of constant amplitude can be generated with
A. Rectifier
B. Filter
C. FET
D. oscillator
4 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
5 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
6 A force of 10N is acting along y-axis. Its component along x-axis is
A. 10N
B. 20N
C. 100N
D. Zero N
7 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
8 The part of a transistor which is heavily doped to produce large number of majority carriers is
A. Emitter
B. Base
C. Collector
D. Any of the above depending on nature of transistor
9 At constant volume temperature is increased. Then
A. Collision on walls will be less
B. Number of collisions per unit time will increase
C. Collisions will be in straight lines
D. Collisions will not change
10 A particle is moving in a uniform magnetic filed, then
A. its momentum changes but total energy remains the same
B. Both momentum and total energy remains the same
C. Both changes
D. Total energy change but momentum remains

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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