Question # 1

A wave that remains in a constant position is called.

Choose an answer

Standing wave

Transvers wave

Shock wave

Longitudinal wave

With the increase of temperature, teh pitch of an organ pipe

Choose an answer

Increase

Descrease

Remain the same

May increase or decrease

Plane polarized light can be produce dby

Choose an answer

Simple reflection

Double refrraction

Scattering of light

All of these

Huygen's principle is used to explain the

Choose an answer

Speed of light

Dispersion of light

Propagation of light

Reflection of light

operation of a LASER depends upon

Choose an answer

Spontaneous emission of radiation

The existence emission of radiation

The existence of atoms in normal state

The existence of atoms in metastable state

Velocity of sound in air at a given temperature

Choose an answer

Increases with increase in pressure

Is independent of the pressure

Decreases with increases in density

Increases with increase in density

Stationary waves are produced when two identical waves are moving on the string.

Choose an answer

Along the same direction

Along the opposite direction

Along the perpendicular direction

Of length 1 m

Which technique uses underwater sound propagation to detect and locate submerged objects.

Choose an answer

RADAR

LIDAR

SONAR

LASER

With which factor disputative power of a grating increases.

Choose an answer

Order of spectrum

Number of lines per centimeter

Order and number of lines per centimeter

Shape of the grating

Which effect explain the frequency shift that occurs when there is motion sound a listener or both relative to the medium.

Choose an answer

Early effect

Doppler's effect

Hall effect

Zeeman effect

The quality of sound

Choose an answer

Decreases with pitch

Varies directly as its pitch

Varies inversely as its pitch

Depends upon the overtones present there

A wave source of frequency 1,000 Hz emits waves of wavelength 0.1 m How long does it take for the waves to travel 2500 m.

Choose an answer

4 s

25 s

40 s

100 s

The closed end of an organ pipe having longitudinal stationary waves in it behaves as

Choose an answer

Antinode

Source of waves

Node

Antinode

The polarization of an electromagnetic wave is determined by

Choose an answer

The magnetic field

The electric field

The electric and magnetic fields

The field direction of propagation of electromagnetic waves

Which is the best sound source to produce a pure note.

Choose an answer

Tuning fork

Flute

Drum

Harmonium

According to Huygen's principle

Choose an answer

Light bends round corners

Light travels in a straight line

All points on primary wave front are considered centre of distances

Light has wave nature

Which of the following forms of electromagnetic energy has the longest wavelength.

Choose an answer

Microwaves

Radio waves

Infrared waves

^{Visible light}

Light waves can be polarized because they

Choose an answer

have short wavelength

Have high frequency

Can be reflected

Are transverse

When amplitude of a wave becomes double its energy becomes.

Choose an answer

Xero

Double

4 times

6 times

Laser light is considered to be coherent because it consists of.

Choose an answer

Many wavelengths

Uncoordinated wavelengths

Coordinated waves of exactly the same wavelength

Divergent beams

Which instrument measures properties of light over a specific portion of the electromagnetic spectrum.

Choose an answer

Photometer

Spectrometer

Hydrometer

Lactometer

More Classes

Other Links

PPSC Physics Chapter 5 Waves and Wave Properties of Light 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