Question # 1

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

For multiplication and division purposes, percentage uncertainties are:

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Add

subtracted

Multiplied

Divided

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

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super

Quantitative

Qualitative

Both B and C

Astrophysics is a branch of physics, which deals with:

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Sub-atomic particles

Stars and galaxies

Light and sound

Music

Silicon can be obtained from

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Lead

Uranium

An isotope of oxygen

Sand

Significant figures in 0.2020 are:

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Two

Three

Four

Five

For addition and subtraction purposes, absolute uncertainties are:

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Added

Subtracted

Multipiled

Divided

1 gm-cm^-3is equal to:

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10³kg-m^-3

10^-3kg-m^-3

1 kg-m^-3

10⁶kg-m^-1

Electron is a particle whose mass is:

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Greater than that of a proton

Smaller than of a proton and greater than mass of neutron

Smaller than that of proton or neutron

Greater than that of an atom

At the present time, the main frontiers of fundamental science are

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2

3

4

5

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

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Radio telescope

Microscope

Telescope

Spectro scope

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

Radio telescope is used to gather information from

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Earth

Moon only

Far side of the universe

Sea water

The study of physics involves?

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Structure of space and time

Interaction of electromagnetic radiation with matter

Both of them

Chemical changes

None of them

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

In the equation E=mc² value of c is?

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186000 miles per hour

186000 miles per sec

3 X 10⁸m/sec

Both A and C

Both B and C

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ECAT Physics Chapter 1 Measurements Online Test MCQs With Answers

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