Question # 1

Which waves are used in sonography?

Choose an answer

Microwaves

Infra red waved

Sound waves

Ultrasonic waves

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

Choose an answer

remains the same

decreases

increases

none of them

SI unit of wave length is:

Choose an answer

Kilometer

Metre

Centimetre

Hertz

The phase determines the

Choose an answer

displacement

amplitude

frequency

state of motion of vibrating body

Decibel is unit of

Choose an answer

Intensity of light

x-ray radiation capacity

sound loudness

Energy of radiation

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

Choose an answer

60°

90°

120°

180°

While describing the motion of a simple pendulum, the frictional effects are

Choose an answer

taken into account

completely ignored

partially ignored

none of them

Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?

Choose an answer

400 m/sec

40 m/sec

430 m/sec

300 m/sec

For production of beats the two sources must have

Choose an answer

Different frequencies and same amplitude

Different frequencies

Different frequencies, same amplitude and same phase

Different frequencies and same phase

The total energy of spring mass system is

Choose an answer

zero

changing with time

constant

none of them

When a body is performing S.H.M., its acceleration is

Choose an answer

inversely proportional to the displacement

directly proportional to the applied force

directly proportional to the amplitude

directly proportional to the displacement but in opposite direction

There is no net transfer of energy by particle of medium in

Choose an answer

Longitudinal wave

Transverse wave

Progressive wave

Stationary wave

A simple pendulum consists of a

Choose an answer

small light bob

small heavy bob

big light bob

big heavy bob

Longitudinal waves are also called:

Choose an answer

Congressional waves

Transverse waves

Radio waves

None of them

Shock absorber of the car is an example of

Choose an answer

resonance

forced oscillations

interference

damped oscillations

More Classes

Other Links

ECAT Physics Chapter 8 Waves Online Test 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