Question # 1

The maximum energy of photons emitted from ab X rays tube is certain to be increased by

Choose an answer

Increasing the voltage across the tube

Decreasing the voltage across the tube

Heating the metal target

Putting a barrier in the way of photons

The interference between two sounds of slightly differed frequency is

Choose an answer

shock wave

Beats

Sonic boom

Doppler's effect

The locus of all points in a medium having the same phase of vibration is called.

Choose an answer

Creast

trough

Wavelength

Wave front

To produce beats it is necessary to use two waves.

Choose an answer

Travelling in opposite direction

Of slightly different frequencies

Of equal wavelengths

Of equal amplitudes

the amplitude of a wave indicates

Choose an answer

Wavelength

Frequency

Intensity of wave

Nature of wave

A girl standing 150 m in front of tall building fires a pistol A boy standing 350 m behind her hears two bangs 1 s apart from this information what is the speed of sound in air.

Choose an answer

150 m s-1

300 m s-1

280 m s-1

330 m s-1

Which term best describes the nature of light from modern view point.

Choose an answer

Waves

Rays

Particles

Photons

Polarized sunglasses decrease glare on a sunny day because they

Choose an answer

Completely absorb light

Block a portion of light

Have a special colour

refract light

Michelson's interferometer can be used to measure.

Choose an answer

Wavelength of light

Intensity of light

Amplitude of disturbances

Frequency of light

When a monochromatic wave enters from one medium into another the property that remains unchanged.

Choose an answer

Amplitude

Velocity

Frequency

Nature of the wave

A wave reflected from the boundary of a rarer medium will have phase change

Choose an answer

0 ^o

60 ^o

90 ^o

180 ^o

A LASER beam may be used to measure very large distance because it is.

Choose an answer

Unidirectional

Coherent

Monochromatic

Massive

The phase velocity is the velocity of a point that moves with a wave at constant phase it is also called.

Choose an answer

Phase speed

Wave speed

Wave velocity

All of these

When a transverse wave is reflected on going from a more dense to a less dense medium.

Choose an answer

There is no phase shift

There is a 180 ^o phase shift

There is a phase shift of 360 ^o

A crest is transformed to a trough

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

X-rays can cause

Choose an answer

Malaria

Dysentery

Cancer

Blood pressure

Which of the following is a method of energy transfer.

Choose an answer

Conduction

Wave motion

Radiation

All of these

Which of the following refers to the distance from crest to crest of a wave.

Choose an answer

Frequency

Wavelength

Amplitude

Period

Which of the following are examples of transverse and a longitudinal wave.

Choose an answer

Radio and sound waves

Radio and light waves

Light and water ripples

Light and sound waves

Pitch of the sound determines

Choose an answer

Its shrillness

Loudness of sund

Intensity level

Quality of sound

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