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

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

Question # 2

The sieman is the SI unit of

Question # 3

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 # 4

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

Question # 5

A photoelectric cell coverts

Question # 6

When sound waves travel from air to water which of these remains constant?

Question # 7

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

Question # 8

For production of beats the two sources must have

Question # 9

A particle moving in a magnetic field has increase in its velocity, then its radius of the circle

Question # 10

A body moving in circular motion with constant speed has

Question # 11

The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be

Question # 12

The volt/metre is the unit of:

Question # 13

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

Question # 14

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 # 15

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

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The initial velocity of a body moving along a straight line in 7 m/s. It has a uniform acceleration of 4 m/s2. The distance covered by the body in the 5th second of its motion is
A. 25 m
B. 35 m
C. 50 m
D. 85 m
2 A 50-volt battery is connected across 10-ohm resistor. The current is 4.5 A. The internal resistance of the battery is
A. Zero
B. 0.5 ohm
C. 1.1 ohm
D. 5.0 ohm
3 Ultra-violet radiation of 6.2 eV falls on an aluminium surface. K.E. of fastest electron emitted is (Work function = 4.2 eV)
A. 3.2 x 10-21 J
B. 3.2 x 10-19 J
C. 7 x 10-25 J
D. 9 x 10-32 J
4 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
5 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
A. 12 s
B. 8 s
C. 15 s
D. 10 s
6 The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 10. If 240 volts ac are applied to the primary, the output the secondary will be
A. 48A
B. 24V
C. 12V
D. 6V
7 The average binding energy of a nucleus inside an atomic nucleus is about
A. 8 MeV
B. 8 eV
C. 8 Joules
D. 8 ergs
8 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
9 An object is placed at a distance of f/2 from a convex lens. The image will be
A. At one of the foci, virtual and double its size
B. At, 3f/2, real and inverted
C. At 2f, virtual and erect
D. At f, real and inverted
10 In which of the following states does the incandescent substance give continuous spectrum?
A. Vapours in atomic state
B. Vapours in molecular state
C. Solid or fluid in bulk state
D. Solid or fluid in plasma state

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