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 n-type of semiconductor is heated

Question # 2

A (100 W, 200 V) bulb is connected to a 160 V power supply. The power consumption would be

Question # 3

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 # 4

The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an a.c. supply of 20 V, 50 Hz. The secondary will have an output of

Question # 5

The part of a transistor which is heavily doped to produce large number of majority carriers is

Question # 6

Which of the following sources give discrete emission spectrum?

Question # 7

A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts:

Question # 8

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 # 9

A wire of radius r has resistance R, It it is stretched to a wire of r/2 radius, then the resistance becomes

Question # 10

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

Question # 11

How much water a pump of 2kW can raise in one minute to a height of 10 m, take g = 10 m/s2?

Question # 12

Ball pen function on the principle of

Question # 13

Centre of mass is a point

Question # 14

The modulus of rigidity of a liquid is

Question # 15

The henry is the unit for

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The length of a telescope is 36 cm. The focal lengths of its lenses can be
A. 30 cm, 6 cm
B. -30 cm, -6 cm
C. 30 cm, -6cm
D. -30cm, 6cm
2 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
3 If the period of oscillation of mass (M) suspended from a spring is 2s, then the period of mass 4M will be
A. 1 s
B. 2 s
C. 3 s
D. 4 s
4 A prism splits a beam of white light into its seven constituent colors. This is so because
A. Phase of different colors is different
B. Amplitude of different colors is different
C. Energy of different colors is different
D. Velocity of different colors is different
5 The dimensional formula for the modulus of elasticity is same as that for:
A. Stress
B. Strain
C. Velocity
D. Surface tension
6 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
7 A monochromatic source of light is placed at a large distance d from a metal surface. Photoelectrons are ejected at rate n, kinetic energy being E. If the source is brought nearer to distance d/2, the rate and kinetic energy per photoelectron become nearly
A. 2n and 2E
B. 4n and 4E
C. 4n and E
D. N and 4E
8 In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie
A. Ultraviolet
B. Infrared
C. Visible
D. X-ray
9 Which of the following four statement is false?
A. A body can have zero velocity and still be accelerated
B. A body can have a constant velocity and still have a varying speed
C. A body can have a constant speed and still have a varying velocity
D. The direction of the velocity of a body can change when its acceleration is constant
10 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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