Question # 1

Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:

Choose an answer

2 N

- 2 N

18 N

36 N

The weight 'mg' of the bob is resolved into

Choose an answer

one component

two components

three components

four components

An eV is unit of:

Choose an answer

Potential

Energy

Work

Power

Both (B) and(C)

Newton published laws of motion in his famous book "principia" in

Choose an answer

1867

1667

1676

1687

Which one of the following is dimensionless.

Choose an answer

Acceleration

Velocity

Density

Angle

The distance covered by a body in unit time is called.

Choose an answer

Displacement

speed

Velocity

Both B and C

Polymers are the chemical combination of carbon with:

Choose an answer

Nitrogen

Oxygen

Hydrogen

All of these

None of these

While deriving equation of pressure by kinetic theory of gases, we take into account:

Choose an answer

Only linear motion of molecules

Only rotational motion

Only vibratory motion

All of these

When either L or C is increased, the resonant frequency of the RLC series circuit

Choose an answer

Increases

Decreases

Remains the same

Becomes zero

dimensions are the same for:

Choose an answer

Work and energy

Force and weight

None of these

Both a and b

A person standing near the track of a fast moving train has tendency to fall towards it because of

Choose an answer

Vibration due to motion of train

Gravitation force of attraction between person and trains

The high speed of train

Some other effect

The induced emf in a coil is proportional to:

Choose an answer

Magnetic flux through a coil

Rate of change of magnetic flux through the coil

Area of the coil

Product of magnetic flux and area of the coil

______ 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

When a silicon crystal is doped with a pentavalent element, such an extrinsic semi-conductor is called

Choose an answer

p-type semi-conductor

n-type semi-conductor

either of them

none of them

Laplace formula is derived from

Choose an answer

Isothermal change

Adiabatic change

Isobaric change

None of these

The reactance of a cell changes directly with

Choose an answer

frequency of a.c

the inductance

both a and b

none of these

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

Choose an answer

uniform deceleration

uniform negative acceleration

average acceleration

uniform positive acceleration

If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy

Choose an answer

Ve

V/e

e/V

2Ve

Particles have the mass smallest of following is:

Choose an answer

Electron

Proton

Neutron

Quark

Crystalline solids are in the form of:

Choose an answer

Metals

Ionic Compounds

Ceramics

Both (A) and (B)

All of these

Static electricity is produced by the transfer of:

Choose an answer

Electrons

Protons

One fluid

Two fluids

None of these

The results of spectra obtained by Blamer were expressed in 1896 by

Choose an answer

Bohr

Rydberg

Planck

Rutherford

Coulomb

A uniform resistance wire of Length L and diameter d has a resistance R. Another wire of same material has length, 4L and diameter 2d, the resistance will be

Choose an answer

2 R

R

R/2

R/4

Capacitance of two or more capacitors

Choose an answer

Increases in series combination

Increases in parallel combination

Remains unchanged

None of the above

Which one is related to angular motion:

Choose an answer

Moment of a force

Moment of inertia

Moment of momentum

None of these

The half lie of radium-226 is

Choose an answer

238 years

4.5 x 10⁹days

1620 years

332 years

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Choose an answer

Not affected due to its size

Twice that of small size ball

Four times that of small size ball

1/4th of that of small size ball

The restoring force is _____ and opposite to the applied force within ______,:

Choose an answer

Equal, elastic limit

Different, the walls of the laboratory

Different, elastic limit

None of these

From sand, we get a material used for construction with the motion of bodies under the action of forces is called:

Choose an answer

Optics

Mechanics

Thermodynamics

Astrophysics

Braking radiation causes:

Choose an answer

Continuous spectrum

Line Spectrum

Band spectrum

Discrete specturm

All of these

Nucleon means:

Choose an answer

Only electrons

Only neutrons

Only protons

Both (A ) and (C)

Both (B) and (C)

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