Question # 1

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

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Choose an answer

1 MHz

10 Hz

1 GHz

100000 Hz

The weight 'mg' of the bob is resolved into

Choose an answer

one component

two components

three components

four components

Through which character we can distinguish the light waves from sound waves

Choose an answer

Interference

Refraction

Polarization

Reflection

A weakly damped system has fairly

Choose an answer

sharp resonance curve

flat resonance curve

both of them

none of them

The velocity of sound in air not effected by changes in

Choose an answer

Moisture contents in air

Temperature of air

The atmosphere pressure

The composition of air

Laplace formula is derived from

Choose an answer

Isothermal change

Adiabatic change

Isobaric change

None of these

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Choose an answer

kg

kg-meter

kg/meter

Meter/kg

transverse wave motion is possible in:

Choose an answer

Air

A mixture of NH₃and O₂

Strings

All of these

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Choose an answer

1 : 2

4 : 1

1 : 4

2 : 1

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

Choose an answer

Stationary waves

Transverse waves

Both of these

None of these

The loudness and pitch of a sound note depends on

Choose an answer

Intensity and velocity

Frequency and velocity

Intensity and frequency

Frequency and number of harmonic

The wave form of S.H.M will be

Choose an answer

square wave

sine wave

rectified wave

saw-tooth wave

A wave, which transfer energy by moving away from the source of disturbance is called a

Choose an answer

progressive wave

travelling wave

both of them

none of them

When the bob of simple pendulum is at extreme position, its K.E. will be

Choose an answer

maximum

minimum

zero

all of them

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

Choose an answer

Longitudinal wave

Transverse wave

Progressive wave

Stationary wave

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