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 force between two charges 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

Question # 2

Choose the correct statement

Question # 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)

Question # 4

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 # 5

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

Question # 6

The velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is:

Question # 7

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 8

In Young's experiment, two coherent sources are placed 0.90 mm apart and the fringes are observed one metre away. If its produces the second dark fringe at a distance of 1 mm from the central fringe, the wavelength of monochromatic light used would be

Question # 9

A cable breaks if stretched by more than 2 mm. It is cut into two equal parts. How much either part can be stretched without breaking?

Question # 10

When we apply reverse bias to a junction diode, it

Question # 11

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

Question # 12

A couple produces

Question # 13

The unit of inductance is equivalent to

Question # 14

A 50-volt battery is connected across 10-ohm resistor. The current is 4.5 A. The internal resistance of the battery is

Question # 15

For obtaining appreciable extension, the wire should be

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    Zarrar Durrani 12 - Jul - 2024 12 Min 04 Sec 13/15
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    Hajra 01 - Dec - 2018 03 Min 05 Sec 7/15
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    Lolo Polo 22 - Jul - 2022 03 Min 06 Sec 7/15

NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 A p-n junction has a thickness of the order of:
A. 1 cm
B. 1 mm
C. 10-6cm
D. 10-12cm
2 If the metal bob is a simple pendulum is replaced by a wooden bob, then its time period will
A. Increas
B. Decreases
C. Remain the same
D. First A then B
3 An ideal choked (used along with fluorescent tube) would be
A. A pure resistor
B. A pure capacitor
C. A pure inductor
D. A combination of an inductor and a capacitor
4 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
5 The essential distinction between X-rays andγ-rays is that
A. γ-rays have smaller wavelength than X-rays
B. γ-rays emanate from nucleus while X-rays emanate from outer part of the atom
C. γ-rays have greater ionizing power than X-rays
D. γ-rays are more penetrating than X-rays
6 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
A. 1.275 eV
B. 12.75 eV
C. 5 eV
D. 8 eV
7 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
8 Steel is preferred for making springs over copper. Why?
A. Steel is cheaper
B. Young's modulus of steel is more than that of copper
C. Young's modulus of copper is more than that of steel
D. Steel is less likely ot be oxidized
9 The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10-19N, is
A. 25
B. 225
C. 625
D. 1250
10 A conducting wire is drawn to double its length. Final resistivity of the material will be
A. Double of the original one
B. Half of the original one
C. One-fourth of the original one
D. Same as original one

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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