Question # 1

The ideal gas law is

Choose an answer

P = nRT

V = nRT

PV =RT

PV =nRT

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be

Choose an answer

1840 KeV

1/1840 KeV

1 KeV

920 KeV

The Instantaneous value of alternative current maybe:

Choose an answer

The same as its RMS value

Greater than its Rms value

The same as its peak value

Any of these

None of these

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Choose an answer

maximum

zero

half of the maximum value

one third of the maximum value

The area under line velocity-time graph is numerically equal to the

Choose an answer

speed of the body

acceleration of the body

distance covered by the body

none of them

The internal pressure of the blood is

Choose an answer

less than the external atmospheric pressure

greater than the external atmospheric pressure

equal to the external atmosphericpressure

none of them

The value of electrical constant of proportionality k is

Choose an answer

9 x 10⁹Nm²C^-2

9 x 10^-9Nm²C^-2

9 x 10¹⁰Nm²C²

9.85 x 10^-12N^-1C^-2

When two objects come to common temperature, the body is said to be in:

Choose an answer

Static equilibrium

Dynamic equilibrium

Thermal equilibrium

None of these

N s m^-2is unit of:

Choose an answer

Drag force

Pressure

Surface tension

Coefficient of viscosity

Centripetal acceleration is also called ______ acceleration:

Choose an answer

Tangential

Radial

Angular

None of them

The reverse saturation current in a PN junction diode is only due to

Choose an answer

Majority carriers

Minority Carriers

Acceptor ions

Donor ions

In a half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be:

Choose an answer

25 Hz

70.7 Hz

50 Hz

100 Hz

Which of the following phenomenon cannot take place if we consider light as longitudinal wave?

Choose an answer

diffraction

interference

polarization

reflection

Viscosity of air at 30^oC in Nsm^-2

Choose an answer

0.015 × 10^-3

0.019 × 10^-3

0.151 × 10^-3

0.0179 × 10^-3

During a negative β-decay

Choose an answer

An atomic electron is ejected

A neutron in the nucleus decays emitting an electron

An electron which already present within the nucleus is ejected

A part of binding energy of nuclei is converted into electron

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

In Milikan's oil drop experiment, the drag force on oil drop is

Choose an answer

F_D = 6ηrv_t

F_D = 6πηrv_t²

FD = 6πηr²v_t

FD = 6πηrv_t

Zero error of the instrument is a type of _____

Choose an answer

Random error

Personal error

Systematic error

Classified error

Which of the following four statements is false?

Choose an answer

A body can have zero velocity and still be accelerated

A body can have a constant velocity and still have a varying speed

A body can have a constant speed and still have a varying velocity

The direction of the velocity of a body can change when its acceleration is constant

The phenomenon of blending of around edges of an obstacle is called:

Choose an answer

Interfarance

Defraction

Polorisation

None of above

The magnetic moment of electron is

Choose an answer

9.27 x 10^-24 joule/Tesla

9.27 x 10^-24 Tesla/joule

9.27 x 10^-23joule/Tesla

9.27 x 10^-23Tesla/joule

Reflection of light from water, glass, snow and rough road surfaces, for larger angle of incidences, produces

Choose an answer

images

bright images

interference

glare

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