Question # 1

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Choose an answer

800^oC

500^oC

300^oC

100^oC

None of these

An inertial frame of reference is that frame of reference in which

Choose an answer

a = 0

a > 0

a < 0

all of them

In an ideal gas, the molecules have:

Choose an answer

Kinetic energy only

Potential energy only

Both KE and PE

None of these

A car battery has e.m.f 12 volt and internal resistance 5 x 10^-2ohm. If it draws 60 ampere current, the terminal voltage of the battery will be

Choose an answer

5 volt

3 volt

15 volt

9 volt

.Depletion region contains:

Choose an answer

Protons

Positive ions

Negative ions

Both (B) and (C)

Both (A) and (C)

Pressure of a gas at constant volume is proportion to

Choose an answer

Total energy of gas

Average P.E to molecules

Average K.E of molecules

Total internal energy of gas

Such oscillations in which the amplitude decreases steadily with time, are called

Choose an answer

resonance

force oscillations

large oscillations

damped oscillations

The CRO deflects the beam of electrons, when they passes through uniform

Choose an answer

electric field

gravitational field

magnetic flax

magnetic field

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

Choose an answer

Zero

Positive

Negative

Infinity

The range of particle depends upon the factor

Choose an answer

charge, mass and energy of particle

density of medium

ionization potential of the atoms

all the above

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

Choose an answer

one

two

three

four

A real gas can be approximated to an ideal gas at

Choose an answer

Low density

High pressure

High density

Low temperature

When a high energy photon interact with a metal, which of the following effect is most likely to be taken place

Choose an answer

pair production

photoelectric effect

Compton effect

None of these

The magnitude of the displacement is a line from initial position to final position which is

Choose an answer

straight

curved

either be curved or straight

none of them

Alternating current can induce voltage because it has a

Choose an answer

High peak value

Varying magnetic field

Stronger field than direct curren

Constant magnetic field

Practically the quantity v/c is always:

Choose an answer

less than one

Equal to one

Greater then one

all of these

None of these

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called

Choose an answer

constant rate

volume rate

flow rate

steady rate

Slope of velocity-time graph represents:

Choose an answer

Acceleration

Speed

Torque

Work

An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be

Choose an answer

V/e

eV

e/V

V

Rate of change of momentum is called

Choose an answer

Impulse

Force

Torque

Momentum

If the ends of a wire are connected to a battery an electric field E will be set up at:

Choose an answer

The ends of the wire only

Mid points of the wire only

Every point within the wire

At nodes only

Both (B) and (D)

A non-inertial frame of reference is that frame of reference in which

Choose an answer

a = 0

a > 0 or a < 0

v = 0

none of them

The photoelectric effect, the maximum energy of photoelectrons depends on the

Choose an answer

particular metal surface

frequency of incident light

both of them

none of them

A swing has

Choose an answer

one natural frequency

two natural frequencies

three natural frequencies

four natural frequencies

Aluminum is a:

Choose an answer

Good insulator

Bad conductor

Both (A) and (B)

Excellent conductor

Semiconductor

The powers of tow electric bulbs are 100 W and 200 W. Both of them are joined with 220 V mains. The ratio of resistances of their filaments will be

Choose an answer

1 : 2

2 : 1

1 : 4

4 : 1

If the formula PV = nRT, n denotes:

Choose an answer

Number of molecules per unit volume

Number of moles

Number of molecules

None of these

Fraction of the decaying atoms per unit time is called

Choose an answer

decay atom

decay element

decay constant

decay

A car travels first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is

Choose an answer

37.5 km/h

10 km/h

42 km/h

40 km/h

The ohm's is defined as

Choose an answer

1 ampere / 1 volts

1 coulomb / 1 volt

1 volt / 1 ampere

1 volt / 1 coulomb

A digital system deals with quantities which has discrete values:

Choose an answer

Two in number

One in number

Three in number

Four in number

None of these

More Classes

Other Links

ECAT 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