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

00:00
Question # 1

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 # 2

Which of the modulus of elasticity is involved in compression a rod to decrease its length?

Question # 3

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is:

Question # 4

Copper and germanium are cooled to 70K from room temperature, then

Question # 5

The unit of inductance is equivalent to

Question # 6

Which of the following lists of physical quantities consists only of vectors:

Question # 7

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is

Question # 8

An ideal choked (used along with fluorescent tube) would be

Question # 9

Blood has a density

Question # 10

Who explained the origin of the Fraunhoffer lines?

Question # 11

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 # 12

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 # 13

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

Question # 14

A body of mass 2 kg is thrown up vertically with K.E. of 490 joules. If the acceleration due to gravity is 9.8 m/s2, the height at which the K.E, of the body becomes half its original value is given by:

Question # 15

A p-n junction has a thickness of the order of:

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is:
A. Mass
B. Length
C. Time
D. None
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
A. Increasing by a factor of 2
B. Decreasing by a factor of 2
C. Decreasing by a factor of 4
D. Unchanged
3 If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be
A. 0.1 watt
B. 1 watt
C. 10 watt
D. 100 watt
4 Band spectrum is produced by
A. H
B. He
C. H2
D. Na
5 A 220 V, 50 Hz. A.C. source is connected to an inductance of 0.2 H and a resistance of 20 ohm in series. What is the current in the circuit?
A. 10 A
B. 5 A
C. 33.3 A
D. 3.33 A
6 A photocell with a constant p.d. of V volt across it illuminated by a point source from a distance of 25 cm. When the source is moved to a distance of 1m, the electrons emitted by the photocell
A. Carry 1/4th their previous energy
B. Are 1/16th as numerous as before
C. Are 1/4th as numerous as before
D. Carry 1/4th their previous momentum
7 When the length of a microscope tube increase, its magnifying power
A. Decreases
B. Increases
C. Does not Change
D. May increase or decrease depending on the observer and the place of observation
8 What is the average energy of N molecules of monoatomic gas?
A. 1/2 NKT
B. NKT
C. 3/2 NKT
D. 5/2 NKT
9 In an L-R circuit, time constant is that time in which current grows from zero to the value
A. 0.63 Io
B. 0.50 Io
C. 0.37 Io
D. Io
10 Which of the following sources give discrete emission spectrum?
A. Incandescent electric bulb
B. Sun
C. Mercury vapour lamp
D. Candle

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