Question # 1

The centre of mass of a system is a point where an applied force causes the system to move.

Choose an answer

With rotation

Without rotation

Fastly

Slowly

On which of the following parameters capacitance does not depend upon.

Choose an answer

Area of the plates

Medium between the plates

Distance between the plates

Nature of material for plates

The path of Gama rays in Wilson cloud chamber is

Choose an answer

Irregular

Dense and straight

Thin and continuous

Thin and discontinuous

Lissajou's figures are used in a Cathode Ray Oscilloscope while measuring.

Choose an answer

Time period

Frequency

Voltage gain

phase angle

Angular moment is conserved due to

Choose an answer

Variable force

Constant force

Central force

Uniform force

An object at the end of a spring oscillates with SHM of angular frequency 2 rad s-1 What is the period of oscillation.

Choose an answer

0.32 s

0.50 s

0.80 s

3.1 s

The converse of pair production is

Choose an answer

Annihilation of matter

Materialization

Compton effect

Photo electric effect

A direct vision spectroscope is better than a prism spectrometer because it helps in

Choose an answer

Observing the spectrum without a source

Observing the spectrum perpendicular to a source

Observing the spectrum in line with the source

all of the above

In L-C parallel circuit the capacitor draws a

Choose an answer

Lagging current

Leading current

Lagging voltage

Leading voltage

Andrews isothermal helps to messure

Choose an answer

Boiling point

Boyle's temperature

Temperature of inversion

Critical temperature

Two pure inductors each of self inductance L are connected in parallel The total inductance of the combination is.

Choose an answer

L

2L

L/2

L/4

Reverberation is the

Choose an answer

Presence of large number of overtones

presence of harsh and discordant notes

Presence of ultrasonic vibrations

Persistence of audible sound after the source has stopped

What is the amount of mechanical work done to melt 1 g of ic completely

Choose an answer

4.2 J

42 J

80 J

336 J

Oscillatory motion is always under

Choose an answer

An applied force

Restoring force and inertia

A periodic force

A gravitational force

Which of the following is not electromagnetic .

Choose an answer

x-rays

Gama rays

Cathood rays

Infrared rays

Which of the following form of electromagnetic energy has the highest frequency.

Choose an answer

X rays

Game rays

Ultraviolet waves

Infrared waves

The phase different between the particles vibrating's between two consecutive nodes is.

Choose an answer

0

Lamda /2

2

2 lamda

The permeability of air is

Choose an answer

0.5

zero

infinity

Unity

A dry battery can deliver 3,000 J energy to a small 2 W electric motor before the battery is exhausted for how minutes does the motor run.

Choose an answer

20 minutes

25 minutes

75 minutes

125 minutes

The graph between restoring force and time in SHM is a

Choose an answer

Straight line

Parabola

Sine wave

Circle

Chromatic aberration can be removed by using.

Choose an answer

Convex lens

Two convex lenses

Concave lens

Combination of a convex lens and a concave lens

A body of mass 8 kg moves along a circle of radius 4 m with constant speed of 88 m s-1 The centripetal force on the body is.

Choose an answer

10 N

128 N

48 N

148 N

A pure choke consumes

Choose an answer

No power

Maximum power

Minimum power

Average power

What invention is generally referred to as the first capacitor.

Choose an answer

Mason Jar

Kleist Jar

Layden Jar

Ohm Jar

The electrons behave as wave because.

Choose an answer

They can be diffracted by a crystal

They can be defecting by magnetic field

They can be deflecting by electric field

they can produce ions in gases

In the concept of magnetic circuit, the quantity analogous to resistance in Ohm's law is.

Choose an answer

Reactance

Dipole

Impedence

Reluctance

The terminal velocity in case of spherical droplet is directly proportional to.

Choose an answer

Square of the radius of the droplet

Radius of the droplet

Cube of the radius of the droplet

Half of the Radius of the droplet half

Max. Planck was awarded Nobel prize in.

Choose an answer

1916

1918

1921

1923

Specific heat a different substances varies becouse of

Choose an answer

Same number of molecules in unit mass

Different number of molecules in unit mass

Different K.E. of molecules in unit mass

Same K.E. of molecules in unit mass

Which material has the larges resistivity.

Choose an answer

Silver

Germinium

Amber

Sulphur

A body of mass 3 kg lies on the surface of the table 2 m high it is moved on the surface 4 m the change in P.E. will be.

Choose an answer

9.8 J

6 J

Zero

329 J

More Classes

Other Links

PPSC Physics Full Book 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

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