Question # 1

One radian is:

Choose an answer

Greater than one degree

Less than one degree

Equal to one degree

None of these

As compared to the distance measured by an observer on Earth, the distance from Earth to a star measured by an observer in a moving spaceship would seem:

Choose an answer

Smaller

Lerger

Same

Much larger

None of these

The work done on the body will be zero if:

Choose an answer

No force is applied on the body

Force is applied but no displacement

Angle between F(force) and d(displacement) is 90°

All of these are correct

Field lines are closer to each other in the region where the field is:

Choose an answer

Stronger

Weaker

Much weaker

Absent

None of these

Wave nature of particle was proposed by

Choose an answer

Einstein

Plank

De-Brogile

Max well

The definite number of significant figures in 5000 is:

Choose an answer

Four

Three

Two

One

An inertial frame is that frame in which

Choose an answer

a>0

a=0

a<0

none of these

At resonance, the impedance of RLC series circuit is

Choose an answer

Maximum

Zero

Minimum

Determinate

Of the following, the option ______ reminds of longitudinal waves.

Choose an answer

Sound waves

Heat waves

Electromagnetic waves

Light waves

When radioactive nucleus emits aβ-particle, the proton-neutron ratio

Choose an answer

decrease

increase

same

none of these

Absolute temperature can be calculated by

Choose an answer

Means squares velocity

Motion of the molecule

Both A and B

None of these

The example of mechanical wave is

Choose an answer

waves in ropes

waves on water surface

waves in air

all of them

The location and speed anywhere on earth can now be determined using relativistic effects by NAVISTAR to an accuracy of

Choose an answer

2 cm/s

20 cm/s

200 cm/s

2000 cm/s

Which of the following is not an assumption of kinetic energy

Choose an answer

a finite volume of gas consists of very large number of molecules

the gas molecules are in random motion

collision between the gas molecules are inelastic

the size of the gas molecules is much smaller than the separation between molecules

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

Choose an answer

electric field

gravitational field

magnetic flax

magnetic field

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

S.I. unit of planks constant is

Choose an answer

J-s^-1

J.s

J.s^-2

J.s²

The terminal velocity of water droplet of radius 1 x 10^-4m and desity 1000 kg m^-3descending through air of viscosity 19 x 10^-6kg. m^-1s^-1is

Choose an answer

2.5 ms^-1

3.2 ms^-1

4.3 ms^-1

1.1 ms^-1

The center of mass of a sphere lies at:

Choose an answer

The axis of the sphere

Circumference of sphere

Center of the sphere

None of them

The space around the earth within it exerts a force of attraction on other bodies of known as:

Choose an answer

Nuclear field

Conservative field

Electric field

Gravitational field

Majority charge carriers in the p-region of p-n junction are:

Choose an answer

electrons

positrons

Holes

Neutrons

None of these

Spectrum represents the number of component colours present in certain light in terms of:

Choose an answer

Wavelength

Frequency

Energy

Both (A) and (B)

All of these

One radian is

Choose an answer

Greater than one degree

Less than one degree

Equal to one degree

None of these

For the virtual image, option _______ is not correct:

Choose an answer

1/p = 1/f -1/q

1/f = 1/p -1/q

1/p=1/p-1/f

1/p=1/f+1/q

If we increase the distance between two plates of the capacitor, the capacitance will

Choose an answer

Increase

Decrease

Remain same

First increase then decrease

Those quantities which can be measured accurately are known as

Choose an answer

Physical Quantities

Scalar Quantities

Vector Quantities

Non Physical Quantities

Amplitude is the displacement of the vibrating body from:

Choose an answer

One extreme position to the other extreme position

Mean position any one extreme position

Both A and B are correct

None of these

In a building, there are 15 bulbs of 40 watts, 5 bulbs of 100 watts, 5 fans of 80 watts and a heater of 1 kilowatt. The voltage of the electric main is 220 volts. The minimum efficiency of the main fuse of the building will be

Choose an answer

0.4 A

11.4 A

9.8 A

10.6 A

A typical rocket ejects the burnt gases at speeds over

Choose an answer

400 ms^-1

40000m s^-1

40000 ms^-1

60000 ms^-1

At O° K which of the following properties of a gas will be zero?

Choose an answer

Kinetic energy

Potential energy

Vibrational energy

Density

A full-scale deflection is obtained in a galvanometer with a current of few

Choose an answer

ampere

volts

milliampere

ohm

More Classes

Other Links

Physics ECAT Pre Engineering 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