Question # 1

A rheostat can e used:

Choose an answer

As variable resistor

As potential divider

For varying the current

All of these

None of these

Micheal Faraday and joseph Henry belong respectively to:

Choose an answer

USA and England

England and France

England and USA

USA and France

None of these

The field around a moving charge is called

Choose an answer

magnetic field

conservative field

non-conservative field

none of these

Silicon can be obtained from:

Choose an answer

Lead

Uranium

An isotope of oxygen

Sand

When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates

Choose an answer

Decreases

Increases

No change

May increase or decresase

Which of the following diode is used to derive the current in external circuit when light is incident in the circuit

Choose an answer

photo diode

light emitting diode

photo voltaic cell

none of these

Alternating current can induce voltage because it has a

Choose an answer

High peak value

Varying magnetic field

Stronger field than direct curren

Constant magnetic field

During the upward motion of the projectile, the vertical component of velocity.

Choose an answer

Decreases

Increases

Remains constant

None of these

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

Two sources of sound are said to be coherent if

Choose an answer

The produce sounds of equal intensity

They produce sounds of equal frequency

They produce sound waves vibrating with the same phase

They produce sound waves with zero or constant phase difference all instant of time

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

The diameter of the milky way is

Choose an answer

10¹⁵ m

10¹⁷ m

10¹⁸ m

10²⁰ m

The direction of force experienced by a moving in a magnetic field will be:

Choose an answer

Parallel to the field

Opposite to the field

Parallel to its direction of motion

Perpendicular to both the field and the velocity vector

Find the angle between two forces of equal magnitude of their resultant is also equal to the magnitude of either of these forces

Choose an answer

60^o

120^o

180^o

360^o

Surface tension of water is reduced by adding

Choose an answer

Detergents

Camphor

Plastic

Both A and B

In the Newton's ring, as we proceed towards the periphery of the lens, the thickness of air film

Choose an answer

gradually decreases

gradually increases

suddenly becomes zero

all of them

The more viscous liquids is

Choose an answer

Coal tar

Honey

Kerosene oil

Water

The energy need to magnetize and demagnetize the specimen during the each cycle of magnetizing current is

Choose an answer

Value of current

Value of demagnetizing current

Value of magnetic flux density

Area of the loop

The time taken by the mirror M to rotate through an angle 2π/8 is

Choose an answer

1/8 f

1/16 f

1/4 f

1/2 f

The viscosity of water is

Choose an answer

0.019 x 10^-3 Nsm^-2

0.801 x 10^-3 N-sm^-2

6.29 x 10^-3 N-sm^-2

0.081 x 10³ N-sm^-2

The derived unit of pressure is

Choose an answer

kg/Ns

kgm²/s²

kg/m²s²

kg/ms²

Biomass is a potential source of renewable energy. This includes all the organic material such as

Choose an answer

Crop residue

Natural vegetation

Animal dung

All of these

More Classes

Other Links

Physics General Science Test Medium Mode 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