Question # 1

Most of the matter that fills the universe is in state:

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Solid

Plasma

Liquid

Gas

According to hook's law stress is directly proportional to :

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Area

Volume

Strain

Force

Andromeda is one of the billions of galaxies of known.

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Star

Asteroid

Pole

Universe

Those objects which do not conduct electricity are called.

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Insulator

Semi conductor

Nil

Conduct

The gravitational field exist _________ the earth.

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One direction

Upward

All aorund

Downward

The main source of energy n the universe is:

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Moon

Stars

Sun

Planets

A Leslie cube is use to identify :

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Radiation

Conduction

Convection

Both A and B

The rate at which various surface absorb heat depends upon:

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Nature of surface

Nature of liquid

Radiation

Emission & absorption

In atoms and molecules are packed closely together:

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Solids

Gas

Liquid

Plasma

The orbital velocity of a satellite revolving at height 'h' above the surface of Earth is given by

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In gases, heat in mainly transferred by:

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Molecular collision

Conduction

Convection

Radiaiton

The waves in which particle of the medium vibrate parallel to the direction of waves are called

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Longitudinal waves

Transverse waves

Electromagnetic waves

both b and c

What happen to the atomic number of an element which emits one alpha particle?

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Increase by 1

Stays the same

Decrease by 2

Decrease by 1

A transformer has 100 turns in its primary and 500 turns in secondary coil. If 6 volts D.C is applied across its primary, the voltage induced across its secondary coil will be:

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0 volt

30 volts

45 volts

60 volts

the unit of frequency is:

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hertz

vibration per second

cycle per second

all a, b and c

The data stored in C.D. is.

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680 MB

650 MB

700 MB

750 MB

The waves in which particles of the medium vibrate perpendicular to the direction of waves are:

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Electromagnetic waves

Sound waves

Both a and b

Transverse waves

The 1st practical electric battery is known as:

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Voltaic

Pile

Voltaic pile

Voltaic cell

The intensity level of train siren is:

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150 dB

100 dB

130 dB

120 dB

The value of acceleration is simple harmonic motion at mean position is:

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Maximum

Zero

10 N

Both a and b

The unit of resistance is:

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Ω-m

Ω

V

C

After refraction from a convex lens, rays of light parallel to the principal axis converge at a point, this point of convex lens is called:

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Principal focus

Pole

Focal length

Optical center

A quantity which indicates the state and direction of a vibrating body is known as

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Time period

Amplitude

Phase

Frequency

The minimum distance from eye at which an object appears to be distinct is

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Near point

Focal length

Image distance from lens

Object distance from lens

The optical fiber is covered for protection by a

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Glass Jacket

Plastic Jacket

Copper Jacket

Aluminum Jacket

Original source of energy for biomass is

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Earth

Star

Moon

Sun

the height of the geostationary satellite above the equator is.

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35000 km

36000 km

34000 km

33000 km

The value of solar constant.

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1.4 kW m-2

1.0 kW m-2

1.6 kW m-2

2 kw m-2

Moment of inertia is measure din

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Kg m2

Kg m-2

Rad s-1

Joule second

the angular version of F= ma is

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L = 1w

pi = 1a

l = pi a

f = mv/t

For an ideal gas, the internal energy is directly proportional to.

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Pressure

volume

Mass

Temperature

A wheel of radius 50 cm having an angular speed of a rad /s have linear speed.

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1.5 m/s

3.5 m/s

2.5 m/s

4.5 m/s

A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is

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10 J

20 J

30 J

40 J

Two opposite point charge of same magnitude separated by distance 2d, electric potential mid way between them is.

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1 V

2 V

Zero

V/2

the substances in which the atoms do not form magnetic dipoles are called.

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Diamagnetic

Para magnetic

Ferro magnetic

Crystal

A device that shows the visible path of ionizing particle is called.

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GM counter

Solid state detector

Scalar

Wilson cloud chamber

Lenz's law presented in

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1834

1934

1826

1836

The Lenz's law is also statement of:

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Law of conservation of mass

Law of conservation of charge

Law of conservation of energy

Law of conservation of momentum

The unit of Magnetic flux is called.

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weber

weber/m²

NM^-1A^-1

None of above

The value of Rydberg constant is

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1.0974 x 10⁷ m^-1

1.0974 x 10^-7 m^-1

1.0974 x 10⁶ m^-1

1.0974 x 10^-6 m^-1

The average gap for Germanium at 0K is

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1.12 ev

0.02 ev

6.72 ev

7.2 ev

EMF is induced due to change in

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Charge

Current

Magnetic flux

Electric field

The absolute electric potential at a point distance 20 cm from a charge of 2 uC is.

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9 x 10² V

9 x 10³ V

9 x 10⁴ V

9 x 10 ⁵ V

The amount of energy equal to 1.6 x 10^-18 J is called.

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One volt

One milli volt

One electron volt

One mega electron volt