Question # 1

The height of geostationary satellites with respect to Earth is

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36,300 km

40,300 km

30,300 km

42,300 km

Sin 45^ois

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0.707

0.5

1

0.2

To every action there is always an equal but __________ reaction:

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Same

Parallel

Opposite

Equal

Cos 0^ois

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0

2

1

0.5

The devise used to measure the atmosphere pressure is:

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Rain gauge

Vacuum cleaner

Screw gauge

Barometer

The sum of kinetic energy and potential energy of molecules or atoms is called.

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Temperature

Internal energy

Kinetic energy

Potential energy

In circular motion, the motion of every particle of body is.

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Direction

Opposite

Same

None of these

When a horse pulls a cart , the action is on the :

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Cart

Earth

Man

Earth & cart

Work done is maximum when angle between force and displacement is:

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45°

0°

60°

90°

Weight of the body is__________ to the gravity force between body and earth:

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Less than

Greater than

Equal

Constant

Which expands on heating?

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Water

Steel

Copper

All are true

Magnification of mirror is given by:

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m=p/q

m=q/p

m=pxq

m=1/p+q

According to Fleming's left hand rule the direction of force on the conductor is given by:

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Thumb

Fore finger

Middle finger

None of these

Which of the following tasks are performed by most of the algorithms?

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Input

Out put

Processing

All of these

1 Nano farad is equal to:

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1X10^-12F

1X10⁹F

1X10^-9F

1X10^-6F

1 GB =

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1022MB

1023 MB

1024MB

1025MB

In computer terminology information means:

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Any data

Raw data

Processed data

Large data

The colour of live wire is:

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Black or blue

Green or yellow

White or grey

Red or brown

Big unit of capacitance is:

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Farad

Volt

Watt

Coulomb

The rate of flow of charge through any cross-sectional area is called:

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potential difference

Energy

Coulomb

Electric current

A positive and negative charges are initially 4 cm apart. When they are moved closer together so that they are now only 1 cm apart, the force between them is:

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4 times smaller than before

4 times larger than before

8 times larger than before

16 times larger than before.

If Current flowing through switch then the output is expressed as:

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0

1

-1

2

The direction of vector in space is specified by

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1- angle

2- angle

3- angle

4 - angle

In the absence of external force, the change in momentum is.

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Zero

Constant

Decreasing

Increasing

The angle between circumference of a circle and center is

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Mercury is used as a thermometric substance because

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It is opaque

Does not stick to glass

Has low specific heat

All of these

The area between velocity time graph and the time axis is numerically equal to.

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?Speed of object

Distance covered by the object

Average velocity of the object

Acceleration of the object.

The work done in gravitational field

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Depend upon the path

Does not depend upon the path

(+)ve

Zero

The flow of a fluid is of

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One type

Two types

Three types

Four type

A direction of torque is

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Along the position vector r

Perpendicular to both r and f

Along the direction of force F

Opposite to the direction of r

The Bragg's equation is given by

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When body acquires terminal velocity them its acceleration 'a' becomes.

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a = 0

a = g

a > 0

a < 0

If a mass of a body is doubled, then acceleration becomes.

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Double

Half

One fourth

Constant

For ohmic device the graph between V and I is.

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A straight line

Curve

Hyperbola

Parabola

Net charge enclosed by Gaussian surface is:

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zero

maximum

depend on intensity

none of all

The Unit of decay constant.

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Second

(second)-1

m-1

mk

The working principle of transformer is.

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Self induction

Faraday's law

Mutual induction

Electromagnetic induction

The unit of induced emf is

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Ampere

Volt

Joule/coulomb

Both (b) and (c)

e.m.f is the conversion of --------------- energy into electrical energy

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Chemical

Solar

Light

None of these

Radio frequency choke is

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Iron cored

Air Cored

Air as well as iron cored

None of these

If a low resistance is connected parallel to a galvanometer then galvanometer is converted.

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Ammeter

Voltammeter

Ohmmeter

Multimeter

If D.C. input for step up transformer, the output is

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Zero

High

Low

May be high or low

The electric field lines are closer where the field is

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Strong

Weak

Uniform

Variable

Which is not fundamental logic gate.

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NOT

AND

OR

NAND