Question # 1

If a body reaches a speed equal to the speed of light, then its mass will became

Choose an answer

zero

very small

infinity

none of these

The charge carriers in gases are

Choose an answer

electrons

ions

protons

ions and electrons

Ultraviolet region lies in ______ series

Choose an answer

Layman

Balmer

P fund

B racket

According to slok's law, drag force depends on

Choose an answer

Radius of the spherical body

Terminal velocity of body

Coefficient of viscosity

All of above

A point charge Q is placed at the mid-point of a line joining two charges. 4q and q. if the net force on charge q is zero. then Q must be equal to

Choose an answer

-q

+q

-2q

+4q

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Choose an answer

Sensitive

Accurate

Stable

None of these

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Choose an answer

Longitudinal wave

Transverse wave

No vibration at all

None of them

According to Stoke's law, drag force depends on

Choose an answer

Initial velocity

Final velocity

Terminal velocity

Instantaneous velocity

The circuit which is used to smooth the output voltage of the full-wave rectification is known as

Choose an answer

transformer

rectifier

filter

none of these

The application of Bernoulli's equation is

Choose an answer

Torricelli's theorem

Venture relation

Binomial theorem

Both a and b

The time period of a simple pendulum is independent of its:

Choose an answer

Length

Mass

Value of g

Both A and B

Amorphous solids are also more like

Choose an answer

crystalline solids

gases

liquids

any one of them

In the formula B= µ̻ nl, the symbol n denotes:

Choose an answer

Total number of turns of solenoid

Number of turns per unit length

Number of turns per unit volume

Numbers of turns per unit area

Number of moles

At the starting point of the free fall motion of an object, its acceleration will be

Choose an answer

maximum

minimum

zero

none of them

Alfa , beta and gamma rays are emitted from a radio-active substance

Choose an answer

spontaneously

when it is heated

when it is exposed to light

When it interacts with the other particle

The transition from solid to liquid is actually from:

Choose an answer

Order to disorder

Disorder to order

Order to order

Disorder to disorder

None of these

A particle executes SHM with frequency. The frequency with which its K.E oscillates is

Choose an answer

f/2

2f

f

4f

When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as

Choose an answer

acceptor

donor

either of them

none of them

CT scanning is the abbreviated name of

Choose an answer

Computed Technology

Computed Technique

Computed Technology

Computerized Technique

The example/s of non-electrical energy to electrical is/are:

Choose an answer

Chemical energy

Mechanical energy

Heat energy

Both (A) and (B)

All of these

In all natural processes where heat flows from one system to another, there is always a net

Choose an answer

decrease in entropy

increase in entropy

decrease or increase in entropy

none of them

If force and displacement are in opposite direction, the work done is taken as

Choose an answer

Positive work

Negative work

Zero work

Infinite work

The restoring force is ______ and opposite tot he applied force within ______

Choose an answer

Equal, Elastic limit

Different, The walls of the laboratory

Different, Elastic limit

None of these

Depletion region contains:

Choose an answer

Protons

Positive ions

Negative ions

Both (B) and (C)

Both (A) and (C)

Consider a spherical shell of metal at he centre of which a positive point charge is kept

Choose an answer

The electric filed is zero outside the shell

The electric field is zero everywhere

The electric field is zero in the region inside the shell

The electric field is non-zero in both regions outside and inside the shell

The consumption of energy by a 1000 watt heter in half an hour is:

Choose an answer

5 Kwh

0.5 Kwh

2.5 Kwh

3.2 Kwh

Decibel is unit of

Choose an answer

Intensity of light

x-ray radiation capacity

sound loudness

Energy of radiation

A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?

Choose an answer

108 g

10.8 g

0.8 g

108/0.8 g

Nowadays, Most of the electric energy is produced by the A.C. generators using:

Choose an answer

Hydal water

Geothermal energy

Solar energy

Biomass

Both (B) and (D)

The electric flux is linked with a surface will be maximum when

Choose an answer

The surface is held parallel to the electric field

The surface is held perpendicular to the electric field

The surface makes an angle of 45° with the electric field

All of the above

Viscosity of water is ______ that of air but ___ that of plasma.

Choose an answer

More, more

Less, more

Less, less

More, less

More Classes

Other Links

ECAT Pre General Science Physics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer