Question # 1

A transistor can be used as

Choose an answer

Oscillator

Amplifier

Switch

Both a and c

The unit of intensity of sound waves is.

Choose an answer

W m-1

W m-2

N m-1

N m-2

The Inner electrons in heavy atoms can be disturbed and dislodged by.

Choose an answer

X rays

Alpha particle

Beta particles

gama particles

The ionization potential of hydrogen atom is.

Choose an answer

10.2 V

13.6 V

12.97 V

27.2 V

A diatomic gas contains only

Choose an answer

Translational K.E.

Rotational K.E.

Vibrational K.E.

All of these

Which one of the following scientists got Noble prize due to his work of combining two basic forces of nature.

Choose an answer

Dr. Abdul Qadeer khan

Dr. Abdul Salam

Dr. Muhammad ishfaq

Dr. Mubarak mund

One light year is equal to.

Choose an answer

9.46 x 10¹⁵ cm

9.46 x 10¹⁵ m

9.46 x 10¹⁵ km

7.88 x 10¹⁴ m

The period of a geostationary satellite is.

Choose an answer

32 hours

72 hours

48 hours

96 hours

The ratio of the rms value of the applied voltage to the rms value of resulting A.C. is called.

Choose an answer

Reluctance

Impedance

Reactance

Resistance

The energy transmitted per second though unit are held perpendicular to the direction of propagation of the wave is called.

Choose an answer

Intensity of sound

Pitch of sound

Loudness of sound

Quality of sound

The ratio of inertial mass to gravitational mass is.

Choose an answer

1

0.5

2

3

Light travels perpendicular to electric and magnetic fields and requires no material medium, was proposed by.

Choose an answer

Einstein

Max planck

Maxwell

Bragg

A charged capacitor has charge on its

Choose an answer

Outside surface

Inner surface

Surroundings

Mid point

Which of the following is electromagnetic wave.

Choose an answer

X rays

Micro waves

Light

All of these

The ablate of rays of different colours to converge a single point sifter refraction though a convex lens is called.

Choose an answer

Come

Distortion

Spherical aberration

Chromatic aberration

In projectile motion, the body has

Choose an answer

One component of velocity

Two components of velocity

Three components of velocity

No component of velocity

Viscosity will be maximum when

Choose an answer

Water is at 20 ^oC

Honey is at 20 ^oC

Water is at 100 ^oC

Milk is at 100 ^oC

The electron behave an waves because

Choose an answer

They can be diffracted by a crystal

They can produce ions in gases

They can be deflected by magnetic field

They can be deflected by electric field

The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.

Choose an answer

Nuclear fission

nuclear fusion

Radioactivity

Carbon dating

A double convex lens acts as diverging lens when the object is.

Choose an answer

Inside the focus

At the focus

Between F and 4 F

a 4F

The ratio of stress to strain is called.

Choose an answer

Bulk modulus

Young's modulus

Modulus of elasticity

Shear modulus

When an unbalanced external force acts on a body for a short interval of time.

Choose an answer

The body will experience an impulse.

The momentum of the body increases

The velocity of the body increase

The body is not effected

The magnetic flux density at the centre of a long solenoid is dependent on.

Choose an answer

The number of turns per unit length of the silenced

The volume of the solenoid

The diameter of each turn of the solenoid

All of above

As oscillator is basically an amplifier with loop gain

Choose an answer

Zero

Infinity

Less than unity

More than unity

The chemical behavior of an atom is determined by

Choose an answer

Mass number

Number of Isotopes

Atomic number

Binding energy

The value of 'g' is affected by earth's

Choose an answer

Non spherical shape

Daily motion

Volume

Density

Which vector gives the displacement from one point to another in space.

Choose an answer

Position vector

Unit vector

Null vector

Distance vector

Who devised a technique for the measurement of change on an electron in 1909

Choose an answer

Milikan

Joule

Ampere

Ohm

Magnetic moment is a

Choose an answer

Scalar

Vector

Phasor

Tensor

The fundamental quantities which form the base of the SI are.

Choose an answer

mass, energy and time

mass, force and time

mass, length and time

mass , length and time

The main advantage of step index fiber is.

Choose an answer

The size of the cable

The equality of the cbale

Difference in the wavelengths of signals

All of the above

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