Question # 1

Which scientist announced for the first time that the universe is expanding.

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Einstein

Newton

Edward Hubble

Karl Marx

Any frequency higher than the fundamental frequency of a sound is known as.

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Overtone

Beat

Acoustics

Shockwaves

The SI unit of stress is

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kg m s-2

kg m-1 s-2

N m-2

N m-1

Object may acquire an excess or deficiency of charge by

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Rubbing them together

Grounding them

Applying coulomb's principle

Shielding them

In a vacuum flask the vacuum prevents heat transfer by

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Radiation only

Conduction only

Convection only

Conduction and convection

A Spectrum of radiation in which the quantity being studied, such as frequency or energy takes on discrete values is called.

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Continuous spectra

Band spectra

Discrete spectra

Normal spectrum

Which BJT configurations used for signal inversion.

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CE

CC

CB

BE

The product of velocity and cross sectional are for a liquid flowing through a pipe is a measure of the.

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Rate of flow

Volume of fluid

Fluid pressure

Fluid friction

Supplementary units radian and steradian were established for

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Density

Viscosity

electric intensity

Geometrical quantities

In case of stationary waves every particle of the medium has fixed

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Velocity

Displacement

Amplitude

Phase

Capacitance is define das

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VC

Q/V

QV

V/Q

Which of the following is electromagnetic wave.

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X rays

Micro waves

Light

All of these

Distance covered by a freely failing body in 2 s will be.

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19.6 m

4.m

39.2 m

44.1 m

A logic circuit whose output signal is '1' when inputs are different is.

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NAND gate

NOR gate

Exclusive OR gate

Exclusive NOR gate

Which of the following is the science of measuring the heat of chemical reactions or physical changes.

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Thermometry

Calorimetry

Telemetry

Photometry

The source of magnetic field are

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Isolated magnetic poles

Electric charge distributions

Current loops

Solenoids

Good acoustic implies

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Obtaining as much reverberations as possible

Making the reverberation as small as possible

Obtaining the optimum of reverberations

Eliminating reverberations

Which one of the following is a convenient energy unit to express the energy of sub atomic particles.

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Joule

electron volt

Watt

Curie

The circuit in which current and voltage are in phase the power factor is.

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Zero

Unity

Double

4 times

A battery drives 50 C of charge round a circuit. The total work done is 750 J What is the electromotive force of the battery.

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0.07 V

15 V

700 V

1500 V

Which of the following are particle accelerators.

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Cyclotrons

Synchrotrons

Linear accelerators

All of the above

Which of the following is an electrical insulator that can be polarized by an applied electric field.

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Conductor

Condenser

Di electric

Capacitor

A force passing through the centre of gravity of a body

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Causes its translational motion

Causes its rotational motion

Holds the body in equilibrium

Produces both translational and rotational motion.

The special theory of relativity was presented in 1905 by

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Young

Planck

Schrodinger

Einstein

What kind of movement is dictated by the laws of thermodynamcis.

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Energy motion

Heat work

Light heat

Energy light

The result of the alpha particle scattering experiment gave evidence for which of the following.

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Nuclear fusion

Radio active decay

Existence of isotopes

Nuclear atom

Gases exert pressure on walls of the vessels because gas molecules.

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Possess momentum

Have finite volume

Collide with each other

Obey gas laws

Two sources of sound are said to be in resonance when.

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They look like similar

They produce sound of same frequency

They are enacted by the same agent

They differ from each other

Which Muslim Scientist is regarded as 'Father of Optics"

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Nasir al Din al Tusi

Ibn Ishaq al kundi

Ibn Musa Al khawarzmi

Ibn al Haithem

Which characteristics successively increases in the musical scale.

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Pitch

Quality

Loudness

Amplitude

Which of the following is most suitable for the core of the electromagnetism

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Air

Steel

Su Ni allow

Soft iron

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