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

Ball pen function on the principle of

Question # 2

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 3

A particle is moving in a uniform magnetic filed, then

Question # 4

A piece of fuse wire melts when a current of 15 ampere flows through it.
With this current, if it dissipates 22.5 W, the resistance of fuse wire will be

Question # 5

A bullet is shot from a rifle. As a result the rifle recoils. The kinetic energy of rifle as compared to that of bullet is

Question # 6

For production of beats the two sources must have

Question # 7

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue light of the same intensity

Question # 8

According to classical theory the proposed circular path of an electron in Rutherford model of atom will be

Question # 9

The percentage errors in the measurements of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed

Question # 10

Who explained the origin of the Fraunhoffer lines?

Question # 11

What remains constant when the earth revolves around the sun?

Question # 12

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

Question # 13

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

Question # 14

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 # 15

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting. Calculate the focal length of objective

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Which one of the following phenomena is not explained by Huygen's construction of wavefront?
A. Refraction
B. Reflection
C. Diffraction
D. Origin of spectra
2 The peak voltage in 220 volt A.C. supply is nearly
A. 220 volt
B. 253 volt
C. 311 volt
D. 440 volt
3 A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if
A. The mass of the pendulum is increased
B. The mass of the pendulum is decreased
C. The length of the pendulum is increased
D. The length of the pendulum is decreased
4 Surface tension of water is due to
A. Inter molecular attractions
B. Intermolecular spaces
C. Inter molecular repulsion
D. None of above
5 If the earth were to rotate faster, than its present speed the weight of an object will
A. Increase at the equator but remain unchanged at the poles
B. Decrease at the equator but remain unchanged at the poles
C. Remain unchanged at the decrease but decrease at the poles
D. Remain unchanged at the equator but increase at the poles
6 A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot flies at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to
A. 12 s
B. 8 s
C. 15 s
D. 10 s
7 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
8 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
9 Ball pen function on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tension
10 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above

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