Question # 1

A body whose momentum is constant must have constant

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Acceleration

Velocity

Force

None of these

The number of vibrating body at any instant from its equilibrium position is called

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displacement

frequency

amplitude

time period

Fluids can transmit:

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Transverse wave

Compressional wave

Both of them

None of them

When a shall explodes a mid-air, the total momentum of its fragments is

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less than the momentum of shell

equal to the momentum of shell

greater than the momentum of shell

none of them

In the resonance condition, the amplitude of the oscillator becomes

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very large

very small

zero

any one of them

In radio-active decay, the original element which disintegrate to another element is called

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element

daughter element

parent element

none of these

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

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0.5 J

2 J

0.25 J

1 J

A typical four stroke petrol engine undergoes how many successive processes in each cycle

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one

two

three

four

Calculate the amount of charge flowing in 2 minutes in a wire of resistance 10Ωwhen a potential difference of 20 V is applied between its ends

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120 C

240 C

20 C

4 C

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

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3

24

126

200

When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:

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Along the tangent

Toward the centre

Away from the centre

None of them

The expression of Hook's law is

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F=ma

F=kx

F= -kx

-kx=ma

In a voltmeter the conduction takes place due to

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Electrons only

Holes only

Electrons and holes

Electrons and ions

Unit vector is used to specify:

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Magnitude of a vector

Dimensions of a vector

Direction of a vector

Position of a vector

Which of the following is not a projectile

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a bullet fired from a gun

a space ship

a football in air

an artillery shell

The electrode connected with the positive terminal of the current source is called

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cathode

anode

electrolyte

position

A process is a reversible process, if the entropy of the system

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increases

decreases

remains constant

none of them

When a platinum wire is heated, it appears orange red at

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500°C

900°C

1100°C

1300°C

The study of fluid in motion basically involves law of conservation of:

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Mass

Energy

Change

Both A and C

Both A and B

In the text book, the transistor amplifier circuit is a:

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Common emitter circuit

Common collector circuit

Common base circuit

Any of these

None of these

The value for systolic blood pressure for a normal healthy person is

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140 torr

80 torr

90 torr

120 torr

A body moving along the circumference of a circle of radius R completes one revolution. The radius of a covered path to the angle subtended at the centre is:

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Radius of the circle

Twice the radius

Thrice the radius

None of these

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

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ammeter

voltmeter

galvanometer

avo-meter

INTELSAT operates at frequencies 4, 6, 11, 14 having unit of

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KHz

MHz

GHz

BHz

The conventional current is the name given to current due to flow of

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Positrons

Positive charges

Negative charges

Both A and C

None of these

Which one is the least multiple

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Pico

Femto

Nano

Atto

Blood is an

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Compressible fluid

incompressible fluid

hard

none of them

The minimum charge on any object can not be less than

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1.6 x 10^-19C

3.2 x 10^-19C

1.0 C

4.8 x 10^-19C

In helium Neon Laser Neon = 15% and Helium = 85% used. The lasing gas this unit is

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Helium

Neon

Both

None of these

The length of a metallic rod is 5 meter at 100°C. The coefficient of cubical expansion of the metal will be

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2.0 x 10^-5/°C

4.0x10^-5/°C

6.0x10^-5/°C

2.33x10^-5/°C

Truth table of logic function:

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Summarizes its output values

Tabulates all its input conditions only

Display all its input/output possibilites

Is not based on logic algebra

None of these

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