Question # 1

0.0001210 has ____________ significant figures.

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Four

Three

Seven

Eight

1 gm-cm^-3is equal to

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10³kg-m^-3

10^-3kg-m^-3

1kg-m^-3

10⁶kg-m^-1

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

Electron is a particle whose mass is:

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Greater than that of a proton

Smaller than that of a proton

Smaller than that of a proton or a neutron

Greater than that of an atom

Light year is a unit of

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Time

Distance

Velocity

Intensity of light

Physical quantities are often divided into ______ categories

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3

2

9

5

1 gm-cm^-3is equal to:

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10³kg-m^-3

10^-3kg-m^-3

1 kg-m^-3

10⁶kg-m^-1

Which quantity has different dimension?

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Tension

Work

Energy

Torque

Astrophysics is a branch of physics, which deals with

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Sub-atomic

Stars and galaxies

Light and sound

Music

The information from far side of the universe are gathered by:

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Radio telescope

Microscope

Telescope

Spectro scope

Diameter of the nucleus s of the order of

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10^-10m

10^-12m

10^-15m

10^-18m

Aerodynamics is a branch of:

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Hydrodynamics

Thermodynamics

Both of them

Statics

The instrument used to gather information form the far side of the universe is

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Compound microscope

Radio telescope

Astronomical Telescope

Simple microscope

The branch of physics which deals with the structure and properties of solids is called:

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Plasma physics

Solid state physics

Any of above

Astrophysics

The branch of physics which concerned with the ultimate particles of which the universe is composed is known as

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SolidState physics

Particle Physics

Nuclear Physics

Atomic Physics

A dimension stands for the ___________ nature of certain physical quantity.

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super

Quantitative

Qualitative

Both B and C

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

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Stars and galaxies

Sub-atomic particles

Light and sound

Molecules

Significant figures in 0.2020 are:

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Two

Three

Four

Five

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

Which one is the least multiple

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Pico

Femto

Nano

Atto

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

Diameter of the atom is of the order of

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10^-10m

10^-12m

10^-15m

10^-9m

Astrophysics is a branch of physics, which deals with:

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Sub-atomic particles

Stars and galaxies

Light and sound

Music

The information from far side of the universal are gathered by:

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Radio telescope

Microscope

Telescope

Spectro scpe

Which of the following are the units of intensity of light

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Pois

Lux

Siemen

Candela

The information from far side of the universe are gathered by

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Radio telescope

Microscope

Telescope

Spectro scpe

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

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Relativistic mechanics

Wave mechanics

Quantum

Statics mechanics

Density is defined as:

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Mass per volume

Volume per mass

Mass x volume

Mass per length

Uncertainty is of following type/types:

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Absolute

Fractional

Percentage

All of these

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ECAT Pre General Science Physics Chapter 1 Measurements Online Test MCQs With Answers

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