Question # 1

The isotope/s of hydrogen is /are:

Choose an answer

Protium

Deuterium

Tritium

Both (A) and (B)

All of these

The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:

Choose an answer

Critical temparature

Temperature of vaporization

Melting point

Both (A) and (C)

Both (A) and (B)

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Choose an answer

Increasing by a factor of 2

Decreasing by a factor of 2

Decreasing by a factor of 4

Unchanged

The velocity of sound is greatest in

Choose an answer

Water

Air

Vacuum

Metal

Teh consumption of energy by a 1000 watt heater in half an hour is:

Choose an answer

5 Kwh

0.5 Kwh

2.5 Kwh

3.2 Kwh

The velocity of sound at same temperature is maximum in

Choose an answer

H₂

N₂

O₂

NH₃

The vector is space has:

Choose an answer

One Component

Two Compnents

Three Components

Non of these

When the object lies between F and 2F, the image formed by is formed at:

Choose an answer

Real

Virtual

Diminished

Erect

How much time, theα-particle more massive than an electron

Choose an answer

600

7000

5000

15000

The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is

Choose an answer

10 KJ

5 KJ

2 KJ

1 KJ

Tick the conservation force:

Choose an answer

Tension in a string

Air resistance force

Elastic spring

Frictional force

How does the Young's modulus vary with the increase of temperature?

Choose an answer

Decrease

Increase

Remains constant

First increases and then decreases

By which principle we can locate the position of new wavefront after a later time?

Choose an answer

principle of irreversibility

principle of light

Archimedes principle

Huygen's principle

Approximate power of colour T.V. in watt is

Choose an answer

90

100

130

120

Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?

Choose an answer

2.0 mm

1.0 mm

4.0 mm

0.5 mm

Which pair includes a base unit and a derived unit

Choose an answer

Candela,mole

Joule,pascal

Kilogram,meter

Second Newton

In carnot cycle, there are adiabats

Choose an answer

One

Two

Three

Four

In viewing the distant objects the angle subtended at the telescope is

Choose an answer

Smaller

Bigger

Very large

None of these

Velocity of a body changes if

Choose an answer

direction of motion the body changes

speed of the body changes

neither speed nor direction changes

either speed or direction changes

The term torque is synonymous with

Choose an answer

Moment of force

Moment of inertia

Angular momentum

Pressure

If the radioactive substance reduces to 𝟏 𝟏𝟔 PHYSICS of its original mass in 40 days then its half-life is:

Choose an answer

10days

20days

40days

4days

Pressure exerted by a gas in merely momentum transferred to the walls due to the continuous collisions of molecules of the gas

Choose an answer

Per unit area

Per sec per unit area

Certain area

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