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

A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screen

Question # 2

The angle between rectangular components of a vector is

Question # 3

The nuclear model of atom was proposed by

Question # 4

A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.

Question # 5

Radio waves of constant amplitude can be generated with

Question # 6

The unit of electric current 'ampere' is the amount of current flowing through each of two parallel wires 1 m apart and of infinite length will give rise to a force between them equal to

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

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

Question # 9

Absolute temperature can be calculated by

Question # 10

The volt/metre is the unit of:

Question # 11

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie

Question # 12

Light appears to travel in straight lines since

Question # 13

If a diamagnetic substance is brought near north or south pole of a bar magnet it is

Question # 14

Boyle's law is applicable in

Question # 15

The time period of a simple pendulum is 2 seconds. If its length is increased by 4 times, then its period becomes

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 What will be the duration of the day and night (in hour) if the diameter of the earth is suddenly reduced to half its original value, the mass remaining constant?
A. 12
B. 6
C. 3
D. 2
2 Two forces are acting together on an object. The magnitude of their resultant is minimum when the angle between the force is
A. 0°
B. 60°
C. 120°
D. 180°
3 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
4 A motorist travels A to B at a speed at 40 km/h and returns at speed of 60 km/h. His average speed will be
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h
5 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
6 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
7 The sieman is the SI unit of
A. Resistance
B. Specific Resistance
C. Conductance
D. Inductance
8 If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting. Calculate the focal length of objective
A. 100 cm
B. 10 cm
C. 20 cm
D. 25 cm
9 Which of the following sources give discrete emission spectrum?
A. Incandescent electric bulb
B. Sun
C. Mercury vapour lamp
D. Candle
10 To explain his theory Bohr used
A. Conservation of linear momentum
B. Conservation of angular momentum
C. Conservation of quantum frequency
D. Conservation of energy

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