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

  • Total Questions15

  • Time Allowed15

NAT II Physical Science Physics

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Question # 1

What remains constant in the field of central force?

Question # 2

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

Question # 3

One cannot see fog because

Question # 4

The modulus of rigidity of a liquid is

Question # 5

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 # 6

A force of 10N is acting along y-axis. Its component along x-axis is

Question # 7

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Question # 8

Centre of mass is a point

Question # 9

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

Question # 10

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

Question # 11

In a simple harmonic motion (SHM), which of the following does not hold?

Question # 12

Band spectrum is produced by

Question # 13

For production of beats the two sources must have

Question # 14

The essential distinction between X-rays andγ-rays is that

Question # 15

In which case application of angular velocity is useful?

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    Zarrar Durrani 12 - Jul - 2024 12 Min 04 Sec 13/15
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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
2 According to the Hooke's law the force required to change the length of a wire by 'I' is proportional to
A. I-2
B. I-1
C. I
D. I2
3 Electrons in the atom are held in the atom due to
A. Coulomb forces
B. Nuclear forces
C. Gravitational forces
D. Van der Waal's forces
4 Planck's constant has the dimensions of:
A. Energy
B. Momentum
C. Frequency
D. Angular momentum
5 A person standing on a rotating platform has his hands lowered. He suddenly outstretches his arms. The angular momentum
A. Becomes zero
B. Increases
C. Decreases
D. Remains the same
6 A p-n junction has a thickness of the order of:
A. 1 cm
B. 1 mm
C. 10-6cm
D. 10-12cm
7 To make the frequency double of an oscillator, we have to
A. Double the mass
B. Half the mass
C. Quadruple the mass
D. Reduce the mass to one fourth
8 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
9 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
10 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

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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