Sound Test

Result

Sound Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

The velocity of sound is affected by change in

A
temperature

B
medium

C
pressure

D
both (1) and (2)
Question 2
1 / -0

In which of the following mediums is the variation of speed of sound with temperature the greatest?

A
Solid

B
Liquid

C
Gas

D
Same in all cases
Question 3
1 / -0

An echo is heard due to the _________ of sound waves.

A
reflection

B
diffraction

C
interference

D
refraction
Question 4
1 / -0

What should be the approximate minimum distance between the source and the reflector in air so that an echo is heard?

A
34 m

B
17 m

C
10 m

D
68 m
Question 5
1 / -0

The walls of the halls built for music concerts should

A
amplify sound

B
reflect sound

C
transmit sound

D
absorb sound
Question 6
1 / -0

What is the requirement for reflection of sound wave ?

A
The size of the reflecting surface must be bigger than the wavelength.

B
The size of the reflecting surface must be smaller than the wavelength.

C
The size of the reflecting surface must be equal to the wavelength.

D
The reflecting surface should be smooth and shiny.
Question 7
1 / -0

What are ultrasonic waves?

A
Sound waves having frequency less than the audio frequency range.

B
Sound waves produced in vacuum.

C
Sound waves having frequency higher than audio frequency range.

D
None of these
Question 8
1 / -0

Sonar makes use of

A
infrasonic sound

B
ultrasound

C
ordinary sound

D
light
Question 9
1 / -0

Which waves are used in sonography?

A
Micro waves

B
Light waves

C
Ultrasonic waves

D
Infrared waves
Question 10
1 / -0

What are the properties of ultrasound that makes it useful?

A
High power and high speed

B
High frequency and high speed

C
High frequency and bending around the objects

D
High power and good directivity

User

Question Analysis

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Re-Attempt Weekly Quiz Competition

Sound Test - 2

Result

Sound Test - 2

Score

-

Rank

-

SHARING IS CARING

Question 1

temperature

medium

pressure

both (1) and (2)

Question 2

Solid

Liquid

Gas

Same in all cases

Question 3

reflection

diffraction

interference

refraction

Question 4

34 m

17 m

10 m

68 m

Question 5

amplify sound

reflect sound

transmit sound

absorb sound

Question 6

The size of the reflecting surface must be bigger than the wavelength.

The size of the reflecting surface must be smaller than the wavelength.

The size of the reflecting surface must be equal to the wavelength.

The reflecting surface should be smooth and shiny.

Question 7

Sound waves having frequency less than the audio frequency range.

Sound waves produced in vacuum.

Sound waves having frequency higher than audio frequency range.

None of these

Question 8

infrasonic sound

ultrasound

ordinary sound

light

Question 9

Micro waves

Light waves

Ultrasonic waves

Infrared waves

Question 10

High power and high speed

High frequency and high speed

High frequency and bending around the objects

High power and good directivity

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

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