Question # 1

A conducting wire is drawn to double its length. Final resistivity of the material will be

Choose an answer

Double of the original one

Half of the original one

One fourth of the original one

Same as original one

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

Choose an answer

Positive

Negative

Zero

None of these

Crystalline solids are in the form of:

Choose an answer

Metals

Ionic Compounds

Ceramics

Both (A) and (B)

All of these

Such an inductor coil which does not consume energy and is often employed for controlling a.c. without consumption of energy is called

Choose an answer

Choke

impedance

Semi-conductor

None

The figure 1.007276μ shows the mass of an:

Choose an answer

Atom

Positron

Electron

Neutron

Proton

A changing magnetic flux creates around itself

Choose an answer

An electromotive force

An electric field (changing electric flux)

Magnetic field

None of the above

10 c.c. each of oxygen and hydrogen are kept in separate flasks. Then which of the following relations is correct?

Choose an answer

Each have same number of molecules

Don't have same number of molecules

Can't be predicted

None

Which of the following forces is responsible for SHM

Choose an answer

Applied force

Restoring force

Fractional force

Elastic force

The minimum charge on any object can not be less than

Choose an answer

1.6 x 10^-19C

3.2 x 10^-19C

1.0 C

4.8 x 10^-19C

The velocity given to a body to go out of the influence of earth's gravity is known as:

Choose an answer

Terminal velocity

Orbital velocity

Escape velocity

None of these

Radioactivity was discovered by

Choose an answer

Rutherford

Henri Becqureal

Maxwell

James Chadwick

In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is

Choose an answer

50 Hz

100 Hz

500 Hz

zero

A disc roll down a hill of 10.0 m from rest without slipping. What is its speed at the bottom

Choose an answer

10.2 ms^-1

11.3 ms^-1

11.4 ms^-1

None of these

Ratio of dimensions of power and K.E is

Choose an answer

1 : 1

T : 1

1 : T

M : T

Coin of radius R is beaten uniform to make a disc of radius 2R.Its moment of inertia.

Choose an answer

Decreases

Increases

Remains the same

Decreases or increases depending on the actual value

Viscosity of gas with increase in temperature

Choose an answer

Decreases

Increases

No change

All

The Bernoulli's equation often expressed in

Choose an answer

P + ρV² + ρgh = constant

P + 1/2 ρV + ρgh = constant

P + 1/2 ρV² + ρgh = Constant

P + 1/2 ρV² + gh = constant

Graphs which are used to illustrate the variation of velocity of an object with time are called

Choose an answer

distance-time graphs

speed-time graphs

velocity-time graphs

acceleration-time graphs

The conventional source of energy is

Choose an answer

Geothermal energy

Solar energy

Hydroelectric energy

None of these

In a cubic crystal, all the sides meet at:

Choose an answer

60°

90°

109°

30°

10°

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?

Choose an answer

Refraction

Reflection

Diffraction

Formation of spectrum

When 'θ' is small then

Choose an answer

tan θ ≈ sin θ

cos θ ≈ sin θ

sin θ ≈ tan θ

None 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