Physics Online Quiz 2018 Questions And Answers, Free Mock Test (GK MCQ)

Physics Quiz

Physics Online Quiz 2018: By solving Physics Quiz, you may increase your knowledge and you will have good command in Important Questions and Answers of Physics. You may get idea about type of questions asked in the examination.

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Physics Online Test 2018:  

Applicants who are going to participate in any competitive exam they can boost their preparation by solving free Online Test with Answers provided here. As, the subject physics is most important and the questions related to the different topics of Physics is quite difficult for most people.

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Physics Quiz

Solve Physics Online Test and Physics Quiz to boost your knowledge and efficiency in the subject of Physics:

Question.1 Nuclear sizes are expressed in a unit named

1.    Fermi

2.    angstrom

3.    newton

4.    tesla

Answer: 1

Question.2 Light year is a unit of

1.    time

2.    distance

3.    light

4.    intensity of light

Answer: 2

Question.3 Mirage is due to

1.    unequal heating of different parts of the atmosphere

2.    magnetic disturbances in the atmosphere

3.    depletion of ozone layer in the atmosphere

4.    equal heating of different parts of the atmosphere

Answer: 1

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Question.4 Light from the Sun reaches us in nearly

1.    2 minutes

2.    4 minutes

3.    8 minutes

4.    16 minutes

Answer: 3

Question.5 Stars appears to move from east to west because

1.    all stars move from east to west

2.    the earth rotates from west to east

3.    the earth rotates from east to west

4.    the background of the stars moves from west to east

Answer: 2

Question.6 Pa(Pascal) is the unit for

1.    thrust

2.    pressure

3.    frequency

4.    conductivity

Answer: 2

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Question.7 Planets do not twinkle because

1.    they emit light of a constant intensity

2.    their distance from the earth does not change with time

3.    they are very far away from the earth resulting in decrease in intensity of light

4.    they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable

Answer: 4

Question.8 Metals are good conductors of electricity because

1.    they contain free electrons

2.    the atoms are lightly packed

3.    they have high melting point

4.    All of the above

Answer: 1

Question.9 Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

1.    will overflow

2.    will not rise

3.    depressed

4.    change its meniscus

Answer: 2

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Question.10 If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same

1.    velocity

2.    momentum

3.    acceleration

4.    kinetic energy

Answer: 2

Question.11 Pick out the scalar quantity

1.    force

2.    pressure

3.    velocity

4.    acceleration

Answer: 2

Question.12 Rectifiers are used to convert

1.    Direct current to Alternating current

2.    Alternating current to Direct current

3.    high voltage to low voltage

4.    low voltage to high voltage

Answer: 2

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Question.13 out of the following, which is not emitted by radioactive substance

1.    Electrons

2.    Electromagnetic radiations

3.    Alpha particles

4.    Neutrons

Answer: 4

Question.14 Sound waves in air are

1.    transverse

2.    longitudinal

3.    electromagnetic

4.    polarised

Answer: 2

Question.15 Magnetism at the centre of a bar magnet is

1.    minimum

2.    maximum

3.    zero

4.    minimum or maximum

Answer: 3

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Question.16 It is more difficult to walk on a sandy road than on a concrete road because

1.    sand is soft and concreter is hard

2.    the friction between sand and feet is less than that between concrete and feet

3.    the friction between sand and feet is more than that between concrete and feet

4.    the sand is grainy but concrete is smooth

Answer: 2

Question.17 Of the following properties of a wave, the one that is independent of the other is its

1.    amplitude

2.    velocity

3.    wavelength

4.    frequency

Answer: 1

Question.18 Lux is the SI unit of

1.    intensity of illumination

2.    luminous efficiency

3.    luminous flux

4.    luminous intensity

Answer: 1

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Question.19 On a rainy day, small oil films on water show brilliant colours. This is due to

1.    dispersion

2.    interference

3.    diffraction

4.    polarization

Answer: 2

Question.20 Materials for rain-proof coats and tents owe their water-proof properties to

1.    surface tension

2.    viscosity

3.    specific gravity

4.    elasticity

Answer: 1

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Final Words:

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