Question # 1

Watt x second is unit of:

Choose an answer

Force

Work

Power

None of these

If water in a closed bottle is taken up to the moon and opened, the water gets

Choose an answer

Freeze

Boiled

Dissociated into O₂and H₂

Evaporated

The life time of metastable state is equal to

Choose an answer

Life time of excited state

Greater than by excited state

Zero

Less than by excited state

Three quarks make:

Choose an answer

An electron

A meson

A baryon

A photon

None of these

Angular frequency 'w' is basically a characteristics of

Choose an answer

linear motion

circular motion

both of them

none of them

In the compton's effect, it is found that the wavelength of incident x-rays is

Choose an answer

greater than the wavelength of scattered x-rays

equal to the wavelength of scattered x-rays

less than the wavelength of scattered x-rays

any one of these

If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:

Choose an answer

250 N m^-1

25 N m^-1

2.5 N m^-1

None of these

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Choose an answer

90°

75°

0°

180°

A structure of polymeric solid is:

Choose an answer

An ordered structure

A disordered structure

Intermediate between order and disorder

Any of these

None of these

The inkjet printer eject a thin stream of:

Choose an answer

Water

Oil

Ink

Any above

None of these

A long wire wound tightly on a cylindrical core is called:

Choose an answer

Potentiometer

Solenoid

Toroid

Wheat and stone bridge

None of these

The actual efficiency of properly tuned engine is usually not more than

Choose an answer

20% to 35%

25% to 30%

25% to 40%

None of these

High temperature water with pressure, come to the surface as

Choose an answer

Hot springs

Geysers

Steam vents

All of these

In 1986 a new class of ceramic material was discovered at temperature as high as

Choose an answer

19 K

78 K

108 K

12 K

Bulk modulus for aluminium is

Choose an answer

40

70

75

95

An object is placed between the focus and the optical center of the convex lens. The image formed is

Choose an answer

Real, erect and magnified

Virtual, inverted and magnified

Virtual, erect and diminished

Virtual, erect and magnified

Experimental demonstration of wave nature of light was given in 1801 by

Choose an answer

New ton

Maxwell

Thomas young

Huygen

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Choose an answer

a circular path

a straight line

a hyperbola

a parabola

The maximum energy of the photoelectrons depends upon:

Choose an answer

Frequency of incident light

Intensity of incident light

Nature of metal

Both (a) & (c)

To cover the whole of the populated Earth surface, there required the correctly positioned satellite at the longitude of

Choose an answer

60^o

120^o

180^o

45^o

Which phenomenon of light conclusively prove that light waves are transverse waves

Choose an answer

Reflection

Diffraction

Interference

Polarization

A wave which consists of a single, non-repetitive disturbance is called a

Choose an answer

Continuous wave

Longitudinal wave

Pulse

Transverse wave

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