Question # 1

Speed of sound in aluminum at 20 ^oC is.

Choose an answer

3600 m/s

5100 m/s

5130 m/s

3500 m/s

A bat finding its correct location by sending

Choose an answer

Matter waves

Ultrasonic waves

Infrasonic waves

electromagnetic waves

Speed of sound in vacuum is

Choose an answer

280 ms-1

332 ms-1

333 ms-1

Zero ms-1

Velocity of sound is independent of

Choose an answer

Temperature

Density

Pressure

Medium

Sound waves are

Choose an answer

Electromagnetic waves

Transverse waves

Compressional waves

Matter waves

An oscillating mass-spring system produces

Choose an answer

Sound waves

Electromagnetic waves

Light waves

Periodic waves

In stationary waves, the velocity of particle at the node is.

Choose an answer

Maximum

Infinite

Zero

Varible

Choose an answer

The periodic variations of sound between maximum and minimum loudness are called.

Choose an answer

Doppler's effect

reflection

Laplace correction

Beats

If the wave motion is 0.01 sec and wave speed is 100 ms-1 then frequency of wave is.

Choose an answer

0.5 Hz

1 Hz

10 Hz

100 Hz

A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is

Choose an answer

4 m

2 m

3 m

1 m

Increase in the velocity of sound in air for 1 ^oC rise in temperature is.

Choose an answer

61 ms-1

0.61 ms-1

161 ms-1

261 ms-1

When the amplitude of a wave is increase to doubled is energy.

Choose an answer

Remain the same

Increases 4 times

Increases by two times

Decreases by half

Speed of sound in copper is

Choose an answer

38000 ms-1

3600 ms-1

3500 ms-1

3400 ms-1

When two identical waves superimposed, which can change.

Choose an answer

Wave length

Frequency

Velocity

Amplitude

Increase in speed of sound for 1 ^oC rise in temperature is.

Choose an answer

0.61 ms-1

0.61 cms-1

61 ms-1

6.1 ms-1

the velocity of sound at 0 ^oC is 332 ms-1, the velocity of sound at 10 ^oC will be

Choose an answer

337.1 ms-1

338.1 ,ms-1

342.1 ms-1

328.1 ms-1

In stationary waves, the particle velocity at nodes is

Choose an answer

Minimum

Maximum

Zero

Constant

The speed of sound is greater in solids due to their high.

Choose an answer

Density

Pressure

Temperature

Elasticity

If a stretched string 4 m long and it has 4 loops of stationary waves, then the wave length is.

Choose an answer

1m

2 m

3 m

4 m

Beats can be heard when difference of frequency is not more than.

Choose an answer

8 Hz

10 Hz

4 Hz

6 Hz

Teh speed of sound in air is 340 m/s. If the pressure of air is doubled then the speed becomes.

Choose an answer

Double

Half

Four times

Remains same

Light waves are

Choose an answer

Longtail waves

Transvers waves

Stationary waves

Mechanical wave

The distance between two consecutive crest is called.

Choose an answer

Displacement

Amplitude

Wave front

Wavelength

More Classes

Other Links

11th Class Part 1 Physics Chapter 8 Test Online 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

Choose an answer

Choose an answer

Choose an answer