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

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

Question # 2

Band spectrum is produced by

Question # 3

Two forces are acting together on an object. The magnitude of their resultant is minimum when the angle between the force is

Question # 4

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

Question # 5

Steel is preferred for making springs over copper. Why?

Question # 6

Radio waves of constant amplitude can be generated with

Question # 7

When light wavelength 300 nm (nanometer) falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, however, light of 600 nm wavelength is sufficient for creating photoemission. What is the ratio of the work functions of the two emitters?

Question # 8

The twinkling of stars is due to

Question # 9

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

Question # 10

A couple produces

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 case application of angular velocity is useful?

Question # 13

The incorrect statement regarding the lines of force of the magnetic field B is

Question # 14

With the increase of temperature viscosity

Question # 15

For production of beats the two sources must have

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NAT-II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The half-life of a radio-isotope is 5 years. The fraction of atoms decayed in this substance after 15 years will be
A. 1
B. 3/4
C. 7/8
D. 5/8
2 To explain his theory Bohr used
A. Conservation of linear momentum
B. Conservation of angular momentum
C. Conservation of quantum frequency
D. Conservation of energy
3 Ball pen function on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tension
4 The volt/metre is the unit of:
A. Potential
B. Work
C. Force
D. Electric field intensity
5 A 2 kg body and a 3 kg body have equal momentum. If the kinetic energy of 3 kg body is 10 J, the KE of 2 kg body will be
A. 6.66 J
B. 15 J
C. 22.5 J
D. 45 J
6 The essential distinction between X-rays andγ-rays is that
A. γ-rays have smaller wavelength than X-rays
B. γ-rays emanate from nucleus while X-rays emanate from outer part of the atom
C. γ-rays have greater ionizing power than X-rays
D. γ-rays are more penetrating than X-rays
7 Which of the following four statement is false?
A. A body can have zero velocity and still be accelerated
B. A body can have a constant velocity and still have a varying speed
C. A body can have a constant speed and still have a varying velocity
D. The direction of the velocity of a body can change when its acceleration is constant
8 According to classical theory the proposed circular path of an electron in Rutherford model of atom will be
A. Circular
B. Straight line
C. Parabolic
D. Spiral
9 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
10 When a hydrogen atom is bombarded, the atom is excited to the n = 4 state of hydrogen atom. The energy released when the atom falls from n = 4 state to the ground state is
A. 1.275 eV
B. 12.75 eV
C. 5 eV
D. 8 eV

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