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

00:00
Question # 1

Which one of the following is a simple harmonic motion?

Question # 2

A photocell with a constant p.d. of V volt across it illuminated by a point source from a distance of 25 cm. When the source is moved to a distance of 1m, the electrons emitted by the photocell

Question # 3

Two forces of 10N and 15N are acting simultaneously on an object in the same direction. Their resultant is

Question # 4

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 # 5

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 # 6

Energy is stored in the choke coil in the form of

Question # 7

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 # 8

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

Question # 9

A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when:

Question # 10

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

Question # 11

Which of the following four statement is false?

Question # 12

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

Question # 13

Ball pen function on the principle of

Question # 14

In Which case does the potential energy decreases?

Question # 15

Which of the following particles would experience the largest magnetic force when projected with the same velocity perpendicular to a magnetic field?

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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:
A. W/4
B. W/2
C. W
D. 2W
2 Two forces of 10N and 15N are acting simultaneously on an object in the same direction. Their resultant is
A. Zero
B. 5N
C. 25N
D. 150N
3 To increase the magnification of a telescope
A. The objective lens should be of large focal length and eyepiece should be of short focal length
B. The objective and eyepiece both should be of large focal lengths
C. Both the objective and eyepiece should be of smaller lengths
D. The objective should be small focal length and eyepiece should be of large focal length
4 When boron is added as an impurity to silicon, the resulting material is.
A. n type conductor
B. n type semiconductor
C. p-type conductor
D. p-type semiconductor
5 A planet is observed by an astronomical refracting telescope having an objective of focal length 16 m and an eyepiece of focal length 2 cm.
A. The distance between the objective and the eyepiece is 8 m
B. The angular magnification of the planet is 200
C. The image of the planet is inverted
D. The objective is smaller than the eyepiece
6 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
7 If the period of oscillation of mass (M) suspended from a spring is 2s, then the period of mass 4M will be
A. 1 s
B. 2 s
C. 3 s
D. 4 s
8 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
9 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
10 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

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