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

The peak voltage in 220 volt A.C. supply is nearly

Question # 2

Absolute temperature can be calculated by

Question # 3

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

Question # 4

A sun rise or sun set, the sun looks reddish because:

Question # 5

When the length of a microscope tube increases, its magnifying power

Question # 6

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

Question # 7

Which of the following is not thermo dynamical function?

Question # 8

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 # 9

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue light of the same intensity

Question # 10

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 # 11

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

Question # 12

The nuclear model of atom was proposed by

Question # 13

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 # 14

The smooth or steady stream-line flow is know as

Question # 15

Centre of mass is a point

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 In a voltmeter the conduction takes place due to
A. Electrons only
B. Holes only
C. Electrons and holes
D. Electrons and ions
2 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
3 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
A. -q
B. +q
C. -2q
D. +4q
4 A boy is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about
A. 80 m
B. 20 m
C. 160 m
D. 40 m
5 Which of the following is a scalar quantity?
A. Density
B. Displacement
C. Torque
D. Weight
6 A capacitor acts as an infinite resistance for
A. AC
B. DC
C. Both AC and DC
D. Neither AC nor DC
7 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?
A. 1 : 2
B. 2 : 1
C. 4 : 1
D. 1 : 4
8 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
9 Electrons in the atom are held in the atom due to
A. Coulomb forces
B. Nuclear forces
C. Gravitational forces
D. Van der Waal's forces
10 Radio waves of constant amplitude can be generated with
A. Rectifier
B. Filter
C. FET
D. oscillator

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