Question # 1

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

0.0001210 has ____________ significant figures.

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Four

Three

Seven

Eight

Physical quantities are often divided into ______ categories

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3

2

9

5

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

Computer chips are made from

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Conductors

Semiconductors

Insulators

Both A and B

Astrophysics is a branch of physics, which deals with

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Sub-atomic

Stars and galaxies

Light and sound

Music

From sand, we get a material used for construction of computer chips. That material is called:

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Germanium

Silicon

Copper

Lead

The error may occur due to:

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Negligence

Faulty apparatus

Inappropriate method

all of these

Which one is the least multiple:

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Pico

Femto

Nano

Atto

Silicon can be obtained from:

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Lead

Uranium

An isotope of oxygen

Sand

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

Significant figures in 0.0010 are:

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Four

Three

Two

One

Particles have the mass smallest of following is:

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Electron

Proton

Neutron

Quark

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 of the following are the units of intensity of light

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Pois

Lux

Siemen

Candela

Distance to nearest galaxy from earth is

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10¹⁰m

10¹⁵m

10⁴⁰m

10³⁰m

Light year is a unit of

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Time

Distance

Velocity

Intensity of light

Dimension of mass is written as:

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M

[M]

(M)

[m]

Silicon can be obtained from

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Lead

Uranium

An isotope of oxygen

Sand

Density is defined as:

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Mass per volume

Volume per mass

Mass x volume

Mass per length

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

Uncertainty is of following type/types:

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Absolute

Fractional

Percentage

All of these

Physics details with the study of:

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Matter

Energy

Both of them

Human body

Particles have the mass smallest of following is:

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Electron

Proton

Neutron

Quark

Astrophysics is a branch of physics, which deals with:

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Sub-atomic particles

Stars and galaxies

Light and sound

Music

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

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2

3

4

5

The quantity having dimension of ML²T⁰²will earth is:

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80 sec

500 sec

1.802 X 10⁴sec

Aerophysics

Aerodynamics is a branch of:

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Hydrodynamics

Thermodynamics

Both of them

Statics

1 gm-cm^-3is equal to

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10³kg-m^-3

10^-3kg-m^-3

1kg-m^-3

10⁶kg-m^-1

Light year is a unit of:

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Time

Distance

Velocity

Intensity of light

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

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