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 sieman is the SI unit of

Question # 2

In an A.C. circuit, a resistance of R ohm is connected in series with an inductance L. If phase angle between voltage and current be 45°, the value of inductive reactance will be

Question # 3

At 0°K which of the following properties of a gas will be zero?

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

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

Question # 6

Centre of mass is a point

Question # 7

Who explained the origin of the Fraunhoffer lines?

Question # 8

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?

Question # 9

If the metal bob is a simple pendulum is replaced by a wooden bob, then its time period will

Question # 10

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 # 11

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

Question # 12

Velocity of sound in a diatomic as is 300 m/sec, what is its rms velocity?

Question # 13

A prism splits a beam of white light into its seven constituent colors. This is so because

Question # 14

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

Question # 15

Which quantity is increased in step-down transformer?

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 If the dot product of two non-zero vectors vanishes, the vectors will be
A. In the same direction
B. Opposite to each other
C. Perpendicular to each other
D. Zero
2 A photoelectric cell coverts
A. Electrical energy to light energy
B. Light energy to light energy
C. Light energy to electrical energy
D. Light energy to elastic energy
3 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
4 If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue light of the same intensity
A. Fringe width will decrease
B. Fringe width will increase
C. The fringe width will remain unchanged
D. Fringes will becomes less intense
5 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
A. 0.916 mA
B. 2.45 mA
C. 4.9 mA
D. 5.1 mA
6 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
7 The time period of a simple pendulum is 2 seconds. If its length is increased by 4 times, then its period becomes
A. 16 s
B. 12 s
C. 8 s
D. 4 s
8 What remains constant in the field of central force?
A. Potential energy
B. Kinetic energy
C. Angular momentum
D. Linear momentum
9 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
A. Half the image will disappear
B. No change either in size or in intensity
C. Intensity of image will increase
D. Intensity of the image will decrease
10 A p-n junction has a thickness of the order of:
A. 1 cm
B. 1 mm
C. 10-6cm
D. 10-12cm

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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