Question # 1

In case of two identical charges placed certain distance apart, the electric field lines are:

Choose an answer

Straight lines

Sine curves

Curved

Both (A) and (B)

None of these

The field in which work done in moving a body between two points depends upon the path followed is called:

Choose an answer

Conservative field

Non-conservative field

Electric field

None of these

When a mass 'm' is pulled slowly through a distance 'x_o' , the elastic potential energy of the spring would be

Choose an answer

P.E=Kx²_o

P.E= 1/2kx_o

P.E=1/2Kx²_o

P.E=Kx²_o

Resistance is measured in

Choose an answer

volts

ampere

ohm

watt

The branch of physics which concerned with the ultimate particles of which the universe is composed is known as

Choose an answer

SolidState physics

Particle Physics

Nuclear Physics

Atomic Physics

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Choose an answer

zero

maximum

minimum

infinity

If the distance between two charges is doubled, the force between them will become

Choose an answer

Double

Half

Three times

One fourth

One third

Good absorbers of heat are

Choose an answer

Poor emitters

Non emitters

Good emitters

Highly polarized

The SI unit of magnetic induction is tesla which is equal to

Choose an answer

Newton/ampere-meter or N/A-m

Newton/ampere²-meter or N/A²-m

Newton/ampere²-meter² or N/A²-m²

Newton/ampere²-meter²or N/A²-m²

A thermistor is a resistor which is:

Choose an answer

Light Sensitive

Heat Sensitive

Sound Sensitive

All of these

None of these

The unit of viscosity is SI system is:

Choose an answer

Kg^-1m sec^-1

Kgm^-1 sec^-1

Kg^-1m^-1 sec

None of these

______ plays the same role during angular motion as played by the mass in linear motion

Choose an answer

Torque

Angular Momentum

Moment of a force

Moment of inertia

Swimming becomes possible because of______law of motion:

Choose an answer

First

Second

Third

None of these

If mass of 10 gm is suspended from a spring of K=0.8 Nm^-1then the extension will be:

Choose an answer

10 cm

1 m

10 mn

None of these

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Choose an answer

-y direction

+y direction

+z direction

-z direction

None of these

Which one of the following is correct?

Choose an answer

V_o= 1.414 V_rms

I_ams= 1.414 I_o

VO = 10.70 Vrms

Both a and b

An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:

Choose an answer

45°

90°

135°

Zero

Moment of inertia depends upon:

Choose an answer

Mass

Selection of axis of rotation

Both of them

None of these

Direction of motion _________ in circular motion

Choose an answer

Changes off and on

Changes continously

Does not change

None of them

Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is

Choose an answer

45°

60°

50°

40°

The value of relative permittivity of different dielectrics are:

Choose an answer

Equal

Different

Greater than one

Smaller than one

Both (B) and (C)

Which is modified form of galvanometer

Choose an answer

potentiometer

battery

voltmeter

slide wire bridge

An A.C. voltage is applied across the inductor. When the frequency of the voltage is increased, the current

Choose an answer

Decreases

Increases

Does not change

Momentarily goes to zero

If the focal length of the convex lens is 5 cm, then to get the real and inverted image of the same size as that of object, the object should be placed at:

Choose an answer

5 cm

10 cm

15 cm

20 cm

Parallel vectors of same magnitudes:

Choose an answer

Are equal

Are unequal

When added give the some equal to zero

Give the answer equal to zero

The circuit in which current and voltage are in phase, the power factor is

Choose an answer

zero

1

negative

0.83

The valence band of an atom in a solid

Choose an answer

is always empty

may or may not be empty

can never be empty

none of them

Which of the following is an example of SHM(in ideal situations)

Choose an answer

Motion of simple pendulum

Motion of horizontal spring man system

Motion of violin string

All of these

Work is a:

Choose an answer

Scalar quantity

Vector quantity

Base quantity

None of these

Solar cell converts sunlight directly into

Choose an answer

potential energy

thermal energy

mechanical energy

electrical energy

In the force applied to parallel to the direction of motion, then the work done is:

Choose an answer

Positive

Negative

Zero

None of these

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