Question # 1

When the object lies between F and 2F, the image formed by is formed at:

Choose an answer

Real

Virtual

Diminished

Erect

Radian is defined as the angle subtended at the center of a circle by an arc of:

Choose an answer

Length equal to its diameter

Length equal to its radius

Any length

None of these

The phase at the positive peak of an A.C. cycle is:

Choose an answer

0º

90º

180º

0 andᏘ

Ꮨ/2 and 3Ꮨ/2

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Choose an answer

Same

Different

Opposite to each other

At 60º with each other

Both (B) and (C)

The device which allows only the flow of an A.C. through a circuit is

Choose an answer

Capacitor

Inductor

D.C. motor

Battery

The number of input terminals of an op-amp is:

Choose an answer

One

Two

Three

Four

None of these

The pressure exerted by the gas is

Choose an answer

directly proportional to the P.E

inversely proportional to the P.E

inversely proportional to the K.E

directly proportional to the K.E

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Choose an answer

Energy, momentum and mass

Energy

Energy and mass

Energy and linear momentum

A body with frequency would complete one vibration in:

Choose an answer

f seconds

1/f seconds

1 second

f²second

Internal friction of fluid is called

Choose an answer

Surface tension

Viscosity

Resistance

Cohesive force

The special theory of relativity is based on:

Choose an answer

Four postulates

Three postulates

Two postulates

One postulate

None of these

In a semi-conductor material, the total current is

Choose an answer

only the +ve current

only the electronic current

sum of +ve and electronic current

all of them

Ohm's law states that

Choose an answer

The current through a resistor is directly proportional to the applied voltage

The voltage across a resistor is directly proportional to the current passing through it

Resistance is the constant of proportionality between the voltage and current

all of these

The direction of lines of force depends upon the direction of

Choose an answer

voltage

current

charges

none of these

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Choose an answer

Maximum

Minimum

Zero

Very small

None of these

Choose an answer

5μF

10μF

3μF

6μF

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Choose an answer

incompressible

compressible

viscous

non viscous

While deriving the equation for pressure of a gas we consider the

Choose an answer

rotational motion of molecules

vibrational motion of molecules

linear motion of molecules

all of them

During the positive half-cycle in the half-wave rectification,the diode

Choose an answer

does not conduct

conducts

either of these

neither of these

Electric lines of force

Choose an answer

Intersect each other

Are always parallel

Are always anti-parallel

Never intersect

None of these

Referring to above figure, current in the coil P grows from zero to its maximum value

Choose an answer

At the instant the switch is closed

At the instant the switch is opened

When switch is kept open

All of above

Neither of above

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Choose an answer

F =q(v/B)

F=q²(v x B)

F=q(v x B)

F= vx B

Which force is not a conservative force?

Choose an answer

Frictional force

Gravitational force

Electric force

Elastic spring force

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/s^s)

Choose an answer

9.8 m

14.7 m

4.9 m

19.6 m

The tidal energy is produced due to rotation of Earth relative to:

Choose an answer

Moon

Sun

Oceans

Water

When two objects come to common temperature, the body is said to be in:

Choose an answer

Static equilibrium

Dynamic equilibrium

Thermal equilibrium

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

In thermodynamics, internal energy is the function of

Choose an answer

temperature

pressure

state

none of them

The phase determines the

Choose an answer

displacement

amplitude

frequency

state of motion of vibrating body

One mole of any substance contain

Choose an answer

same number of molecules

different number of molecules

may be same or different

none of them

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

Choose an answer

Greater than the speed at which they pass from left to right

Less than the speed at which they pass from left to right

The same speed at which they pass from left to right

Any of above

None of them

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