Question # 1

According to Coulomb's law what happens to the attraction of two oppositely charged objects as their distance of separation increases.

Choose an answer

Increase

Decrease

Remain unchanged

Cannot be determined

The energy delivered to the tissue per unit mass is called the absorbed dose of.

Choose an answer

X rays

gama rays

Radiation

energy

Tracer techniques make use of.

Choose an answer

Neutron scattering

Electron beams

LASER

Radioactive isotopes

The Lenz's law is also a statement of the law of conservation of.

Choose an answer

Energy

Mass

Momentum

Torque

The molecular weight of D2O is

Choose an answer

16

18

20

24

Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.

Choose an answer

mouse

Cat

Dog

Rabbit

What is the heat required in Kilo joules when the temperature of 100 g of copper is raised thgough 20 K/. Specific heat capacity of copper is 0.4 x 10-3 kg -1 k-1

Choose an answer

0.4 kj

0.8 kj

400 kj

800 kj

A device which converts electrical energy into mechanical energy is called.

Choose an answer

A.C generator

D.C. generator

Motor

Commutator

Distance covered by a freely failing body in 2 s will be.

Choose an answer

19.6 m

4.m

39.2 m

44.1 m

Who was the first to suggest the existence of a positively charged nucleus in an atom.

Choose an answer

J.J Thomson

R.A Millikan

E.Rutherford

Neil Bohr

A spring obeying Hooke's law has an upstretched length 50 mm and a spring constant of 400 N m-1 What is the tension in the spriing when its overall length is 70 mm.

Choose an answer

8 N

28 N

160 N

400 N

Huygen's principle is used to explain the

Choose an answer

Speed of light

Dispersion of light

Propagation of light

Reflection of light

48 days after the receipt the amount of iodine -131 left behind is only.

Choose an answer

0.1325 g

0.2135 g

0.3125 g

0.1235 g

In comparison with the electrostatic force between two electrons the electrostatic force between two protons is.

Choose an answer

Zero

Smaller

Greater

Same

The refractive index of benzenes is 1.5 What is the critical angle of benzene.

Choose an answer

0.667 ^o

42 ^o

48^o

90^o

The ideal thermal efficiency of a cyclic heat engine is limited by

Choose an answer

Friction in the engine

Amount of heat in the engine

Difference between input temperature and output temperature.

Amount of work

An operational amplifier can be used as a

Choose an answer

Comparator

Night switch

Inverting and non inverting amplifier

All of the above

Periodic motion is a motion.

Choose an answer

Under the influence of an elastic restoring force

That repeats it self in equal intervals of time

Back and forth over the same path

With constant acceleration

If an object moves with velocity of light the apparent mass of the object as compared to list original mass is

Choose an answer

greater

Smaller

Same

zero

In which of the following eddy current is not used

Choose an answer

Induction furnace

Automobile speedometer

Electromagnetic damping

X- rays diffraction

The unit of magnetic induction is.

Choose an answer

weber -metre

weber -metre 2

weber-meter-2

weber-metre-1

When X_c = X_l, this condition is called.

Choose an answer

Equality

Balanced

Resonance

Equlibrium

Which of the following has teh maximum permeability.

Choose an answer

Paramagnetic substances

Ferromagnetic substances

Diamagnetic substances

Iron oxide

An operational amplifier have how many input terminals.

Choose an answer

One

Two

Three

Four

The product of cross sectional area of the pipe and the fluid velocity at any point along the pipe is equal to.

Choose an answer

Zero

Flow rate

A constant

A varibale

The charge per unit volt which is a constant property of the system is known as the

Choose an answer

Dielectric constant

Permitivity

Capactance

Inductance

In a Nuclear reactor which material is often used as modeerator.

Choose an answer

Water

Graphite

Uranium

Water and graphite

Equipotential surfaces in an electric field are always.

Choose an answer

Spherical

Closed surfaces

Tangent to electric lines of force

Perpendicular to electric lines of force

What is the voltage a 6 Mega resistor when 3 A of current passes through it.

Choose an answer

2 V

9 V

18 V

36 V

A pendulum vibrates with a time period of 1 s which range of sound is produced by it

Choose an answer

Audible

Infrasonic

Ultrasonci

Super sonic

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

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