Question # 1

Light year is a unit of

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Time

Distance

Velocity

Intensity of light

Significant figures in 0.0010 are

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Four

Three

Two

One

Which one is the least multiple:

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Pico

Femto

Nano

Atto

The time taken by light to travel from moon to earth is:

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80 sec

500 sec

1.802 X 10⁴sec

Aerophysics

Astrophysics is a branch of physics, which deals with:

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Sub-atomic particles

Stars and galaxies

Light and sound

Music

Branch of physics which deals with the study of stars and galaxies is called:

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Solid state physics

Astrophysics

Molecular physics

Chemical physics

High energy physics is branch of physics, which deals with:

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Stars and galaxies

Sub-atomic particles

Light and sound

Molecules

Particles have the mass smallest of following is

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Electron

Proton

Neutron

Quark

The mechanics, which deals with the objects moving with velocities approaching that of light is called

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Relativistic mechanics

Wave mechanics

Quantum mechanics

Statics

Physical quantities are often divided into ______ categories

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3

2

9

5

Silicon can be obtained from

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Lead

Uranium

An isotope of oxygen

Sand

Which quantity has different dimensions:

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Work

Pressure

Energy

Torque

Addition of 2.189 kg, 0.089 kg, 11.8 kg, and 5.32 kg gives the rounded off answer as:

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19.398

19.400

19.4

19.3

Light year is a unit of:

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Time

Distance

Velocity

Intensity of light

If the absolute uncertainty of an instrument is 0.0a1 cm, then its least count will be :

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0.005 cm

0.01 cm

0.02 cm

0.001 cm

The mechanics, which deals with the objects moving with velocities approaching that of light is called:

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Relativistic mechanics

Wave mechanic

Quantum mechanics

Statics

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ECAT Physics Chapter 1 Measurements Online Test MCQs With Answers

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