Question # 1

A stone is whirled in a vertical circle at the and of a string when the stone is at the highest position, tension in the string is

Choose an answer

Maximum

Zero

Equal to weight of the stone

Less than weight of the stone.

The cathode ray oscilloscope is used

Choose an answer

For viewing the wave shape of rapidly changing electric current

As voltmeter

For measuring time intervals between electricalimpulses

All of the above

A horizontal force of 15 N accelerates a 4 kg object rom rest along a horizontal surface at a rate of 3 m s-2 At the end of 2 s the objects momentum will be.

Choose an answer

12 kg m s-1

24 kg m s-1

30 kg m s-1

45 kg m s-1

What type of current is produced by batteries.

Choose an answer

Direct current

Alternating current

Pulsating current

Convection current

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

Interference fringe spacing depends on

Choose an answer

The wavelength of light used

The distance screen from the coherent sources

Separation between the sources

All of the above

The SI unit of coefficient of viscosity of

Choose an answer

kg m s-1

kg m-1 s-1

kg ms -2

In order to measure the true emf of an electrolytic cell it is necessary that.

Choose an answer

The measurement be made while charging the cell

No current be drawn from the cell

The cell be connected into a type circuit

The cell be connected into a parallel type circuit

Magnetic field does not cause deflection in

Choose an answer

Alpha particle

Beta minus particles

Beta plus particles

Gama rays

The shape of wave front depends on

Choose an answer

Density of medium

Shape of medium

Viscosity of medium

Length of medium

When an object moves with a very high speed the length in the direction of motion.

Choose an answer

Contracts

Expands

Remains the same

Becomes infinity

If average acceleration is equal to instantaneous acceleration then the body's said to be moving.

Choose an answer

Negative acceleration

Positive acceleration

uniform acceleration

Variable acceleration

Light entering glass will not suffer change in

Choose an answer

Wavelength

Direction

Velocity

Frequency

In L-C parallel circuit the capacitor draws a

Choose an answer

Lagging current

Leading current

Lagging voltage

Leading voltage

Which liquid can flow easily.

Choose an answer

Traacle

Pitch

Ether

All flow with same rate

The measure of how strongly a material oppose the flow of electrical current is known as

Choose an answer

Electrical resistivity

Specific electrical resistivity

Volume resistivity

All of the above

Who suggested that energy is radiated or absorbed in discrete packers called quanta.

Choose an answer

Max. Planck

Stefan

Lummer

Boltzmann

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

Choose an answer

X rays

gama rays

Radiation

energy

A sample of an ideal gas may i) energy adiabatically, or ii) Expand isothermally. the net flow of heat into the gas from the exterior is.

Choose an answer

Positive is each case

Negative for i) and positive for ii)

Zero for i) and positive for ii)

Positive for i) and negative for ii)

In a charged capacitor the energy resides

Choose an answer

In the negative plate

In the positive plate

In the field between the plates

Around the edge of the plates

Which both elements are good for nuclear fission.

Choose an answer

Thorium an uranium

Thorium and radium

Plutonium and uranium

Plutonium and throrium

Which of the following is a thermodynamic temperature scale.

Choose an answer

Celsius scale

Fahrenheit scale

Kelvin scale

Rankine scale

For which process is the relation Delta Q = Delta V true.

Choose an answer

Isothermal

Adiabatic

isobaric

Isochoric

A logic circuit with one input and one output that inverts the input signal at the output is.

Choose an answer

AND gate

NOT gate

OR gate

NOR gate

What is the about the electric field inside a metallic sphere.

Choose an answer

It is zero

It varies with the shape of the conductor

It depends on the charge there

It does not charge the metallic sphere

The SI unit of stress is

Choose an answer

kg m s-2

kg m-1 s-2

N m-2

N m-1

Choose the one which acts as single inverter.

Choose an answer

Common emitter

common collector

Common base

Diode

Under an isothermal process internal energy of the system.

Choose an answer

Increases

Decreases

Remain constant

is Zero

A expression for total work done by the battery to move charge against an induced emf is equal to.

Choose an answer

W = LI2

W = 1/2 LI

W = 1/2 L3I

W = 1/2 LI2

Loss of power is optical fibre result into

Choose an answer

Poor receipt ion of signals

Delay in time for reception of signals

accurate information at the receivers

All of the above

Which one of the following telescopes has the least length when set for parallel rays.

Choose an answer

Astronomical telescope

Galileo's telescope

Terrestrial telescope

Reflecting telescope

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