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 length of a telescope is 36 cm. The focal lengths of its lenses can be

Question # 2

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 # 3

Quantity that remains unchanged in a transformer is

Question # 4

In which of the following states does the incandescent substance give continuous spectrum?

Question # 5

Huygen's wave theory of light cannot explain

Question # 6

A monochromatic source of light is placed at a large distance d from a metal surface. Photoelectrons are ejected at rate n, kinetic energy being E. If the source is brought nearer to distance d/2, the rate and kinetic energy per photoelectron become nearly

Question # 7

Which of the following four statement is false?

Question # 8

The dimensional formula for the modulus of elasticity is same as that for:

Question # 9

A moving charge will gain energy due to the application of

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 14

Centre of mass is a point

Question # 15

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

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
A. 200V, 50 Hz
B. 2V, 50 Hz
C. 200V, 500 Hz
D. 2V, 5 Hz
2 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
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 Which of the following particles would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field?
A. Proton
B. Electron
C. He+
D. Li+
5 In a Millikan's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is
A. 3.9
B. 4
C. 4.2
D. 6
6 Which of the modulus of elasticity is involved in compression a rod to decrease its length?
A. Young's modulus
B. Bulk modulus
C. Modulus of rigidity
D. None of the above
7 The volt/metre is the unit of:
A. Potential
B. Work
C. Force
D. Electric field intensity
8 Light appears to travel in straight lines since
A. It is not absorbed by the atmosphere
B. It is reflected by the atmosphere
C. Its wavelength is very small
D. Its velocity is very large
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?
A. 0.25 m
B. 0.5 m
C. 1 mm
D. 2 mm
10 The dimensional formula for the modulus of elasticity is same as that for:
A. Stress
B. Strain
C. Velocity
D. Surface tension

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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