Question # 1

With the increase of temperature viscosity

Choose an answer

Increase

Decrease

Remains same

Doubles

The conventional current is the name given to current due to flow of

Choose an answer

Positrons

Positive charges

Negative charges

Both A and C

None of these

The distance travelled byα-particle in a medium before coming to rest, is called

Choose an answer

range ofγ-particle

range of neutrons

range of particle

none of these

Physics details with the study of:

Choose an answer

Matter

Energy

Both of them

Human body

The SI unit of flux density is

Choose an answer

Newton/Amp-meter

Newton-m/Ampere

Newton-m/Amp²

Newton-Amp/meter

In case of metallic conductors, the charge carriers are

Choose an answer

Protons

Electrons

Antiprotons

Positrons

Both A and B

In the theory of dimensional analysis, heat may be properly represented by:

Choose an answer

ML²T^-2

MT^-2

ML^-1T^-1

None of these

For an atom having atomic number Z and atomic weight A, the charge on the nucleus is

Choose an answer

A - Z

A + Z

Z

A

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

All the valence electrons present in a crystal of silicon are bound in their orbits by

Choose an answer

Ionic bond

covalent bond

Molecular bond

Both (A) and (B)

Both (B) and (C)

The earth’s potential and potential at infinity are taken:

Choose an answer

Equal

Zero

First is greater than the second

Second is greater than the first

Both (A) and (B)

In magnet-coil experiment, emf can be produced by

Choose an answer

Keeping the coil stationary and moving the magnet

Keeping the magnet stationary and moving

Relative motion of the loop and magnet

Any one of above

All above

Split rings act as

Choose an answer

Vibrator

Resistor

Motor

Commulator

A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:

Choose an answer

Minimum Work

Maximum Work

Zero Work

Negative Work

A body moving with uniform velocity has

Choose an answer

positive acceleration

negative acceleration

infinite acceleration

zero acceleration

When the conductor moved across a magnetic field:

Choose an answer

Emf induced is similar to that of a battery

Emf induced gives rise to induced current

An emf induced across its ends

All are correct

None of these

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

Choose an answer

First

Second

Third

None of these

The working of galvanometer depends upon torque exerted on a current carrying coil in

Choose an answer

magnetic field

electric field

gravitational field

nuclear field

A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:

Choose an answer

10 m/sec2

20 m/sec2

30 m/sec2

Zero

The law of conservation of mass gives us the

Choose an answer

equation of continuity

Bernoulli's theorem

both of them

none of them

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

Choose an answer

22 m

6 m

33 m

7.8 m

The entire wave form of sinusoidal voltage is actually a set of all the:

Choose an answer

Positive maximum value + V_oand negative maximum value -V_o

Posiotive maximum value +V_oand zero

Zero and negative maximum value -V_o

Any of these

None of these

What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10^-2Wb, and change in current is 0.01 A?

Choose an answer

2 H

3 H

1/2 H

Zero

Self inducede e.m.f. is also called

Choose an answer

Motional e.m.f.

Thermistor

Electrostatic induction

Back e.m.f

The torque per unit twist of coil is called

Choose an answer

proportionality constant

gravitational constant

boltzman constant

coupling constant

A potential barrier of 0.7V exists across p-n junction made from:

Choose an answer

Germanium

Silicon

Arsenic

Gallium

Indium

Which waves are used in sonography?

Choose an answer

Microwaves

Infra red waved

Sound waves

Ultrasonic waves

If the volume of the gas is to be increased by 4 times, then

Choose an answer

Temperature and pressure must be doubled

At constant P the temperature must be increased by 4 times

At constant T the pressure must be increased by four times

It cannot be increased

Fluids can transmit:

Choose an answer

Transverse wave

Compressional wave

Both of them

None of them

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 60° with the horizontal. The work done by the boy is:

Choose an answer

1.25 J

12.5 J

125 J

None of these

Acceleration of body executing SHM is always directed towards

Choose an answer

Extreme position

Mean position

Along the direction of motion

None

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