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

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

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

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 # 4

An object is placed at a distance of f/2 from a convex lens. The image will be

Question # 5

The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be

Question # 6

Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then

Question # 7

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

Question # 8

The mass defect for the nucleus of helium is 0.0303 a.m.u. What is the binding energy per nucleon for helium in MeV?

Question # 9

How much water a pump of 2kW can raise in one minute to a height of 10 m, take g = 10 m/s2?

Question # 10

A (100 W, 200 V) bulb is connected to a 160 V power supply. The power consumption would be

Question # 11

The frequency of the incident light falling on a photosensitive metal plate is doubled, the kinetic energy of the emitted photoelectrons is

Question # 12

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

Question # 13

The unit of inductance is equivalent to

Question # 14

Steel is preferred for making springs over copper. Why?

Question # 15

If the earth were to rotate faster, than its present speed the weight of an object will

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 For obtaining appreciable extension, the wire should be
A. Short and thin
B. Long and thin
C. Short and thick
D. Long and thick
2 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
3 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
4 The angle between rectangular components of a vector is
A. 0°
B. 60°
C. 90°
D. 120°
5 How does the Young's modulus vary with the increase of temperature?
A. Decrease
B. Increases
C. Remains constant
D. First increases and then decreases
6 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
7 A fly is sitting on the objective of a telescope pointed towards the moon.
What effect is expected on the photography of the moon taken through the telescope?
A. The entire of view blocked
B. There is an image of the fly on the photography
C. There is no effect at all
D. There is a reduction in the intensity of the image
8 In Which case does the potential energy decreases?
A. On compressing a spring
B. On stretching a spring
C. One moving a body against gravitational force
D. One the rising of an air bubble in water
9 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
10 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

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  • Khalid Khan

    Khalid Khan

    28 Mar 2024

    paring scheme of mathh

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