Question # 1

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Choose an answer

Interference

Diffraction

Polarization

Refraction

If the time period a simple pendulum is 2 s, its frequency would be

Choose an answer

2 Hz

1.5 Hz

1.0 Hz

0.5 Hz

A swing has

Choose an answer

one natural frequency

two natural frequencies

three natural frequencies

four natural frequencies

The process in which energy is dissipated from the oscillating system is known as

Choose an answer

resonance

interference

diffraction

damping

In stationary waves

Choose an answer

Energy is uniformly distributed

Energy is minimum at nodes and maximum at antinodes

Energy is maximum at nodes and minimum at antidotes

Alternating maximum and minimum energy producing at nodes and antinodes

For transmission of both transverse and longitudinal waves, we can use:

Choose an answer

Solid

Gas

Plasma

None of these

In the same medium, velocity of the wave:

Choose an answer

Goes on increasing

Remains constant

Goes on decreasing

None of these

Which waves are used in sonography?

Choose an answer

Microwaves

Infra red waved

Sound waves

Ultrasonic waves

Which of the following medium/media can transmit both transverse and longitudinal waves:

Choose an answer

Solids

Liquids

Gases

All of them

The temperature at which the speed of sound becomes double as was at 27°C is

Choose an answer

273°C

0°C

927°C

1027°C

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

The wave form of S.H.M will be

Choose an answer

square wave

sine wave

rectified wave

saw-tooth wave

When two waves with same frequency and constant phase difference phase difference interfere

Choose an answer

There is a gain of energy

There is a loss of energy

The energy is redistributed and the distribution changes with time

The energy is redistributed and the distribution remains constant with time

A weakly damped system has fairly

Choose an answer

sharp resonance curve

flat resonance curve

both of them

none of them

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Choose an answer

equal to the resonant frequency

slight different from the resonant frequency

greatly different from the resonant frequency

any one of them

A body is executing free vibrations when it oscilates

Choose an answer

with the interference of an external force

without the interference of an external force

with the interference of an internal force

none of them

More Classes

Other Links

Physics ECAT Pre Engineering 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

Choose an answer