Sound Test

Result

Sound Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

A key of a mechanical piano is struck gently and then struck again but much harder this time. In the second case

A
sound will be louder but pitch will not be different

B
sound will be louder and pitch will also be higher

C
sound will be louder but pitch will be lower

D
both loudness and pitch will remain unaffected
Question 2
1 / -0

Sound travels in air if

A
particles of medium travel from one place to another

B
these is no moisture in the atmosphere

C
disturbance projects

D
both particles and disturbances travel from one place to another.
Question 3
1 / -0

Infrasound can be heard by

A
dog

B
bat

C
rhinoceros

D
human beings
Question 4
1 / -0

Earthquake produces which kind of sound before the main shock begins?

A
Ultrasound

B
Infrasound

C
Audible sound

D
None of these
Question 5
1 / -0

An object moving at a speed greater than the speed of sound is said to be moving at

A
infrasonic speed

B
sonic speed

C
ultrasonic speed

D
supersonic speed
Question 6
1 / -0

Sound travels

A
slower in warm air than in cold air

B
faster in solids and liquids than in air

C
slower in water than air

D
none of these
Question 7
1 / -0

A source produces 50 crests and 50 troughs in 0.5 seconds. What is the frequency of the wave?

A
50 Hz

B
100 Hz

C
150 Hz

D
200 Hz
Question 8
1 / -0

A thunder clap is heard 5.5 seconds after lightning flash. The distance of the flash is (Velocity of sound in air = 330 m/s)

A
1750 m

B
1815 m

C
3000 m

D
3500 m
Question 9
1 / -0

The ceilings of concert halls and conference halls are made curved so that

A
sound does not become distorted

B
sound reach all parts of the hall after reflection from curved ceilings

C
reverberation is avoided

D
none of these

User

Question Analysis

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Re-Attempt Weekly Quiz Competition

Sound Test - 4

Result

Sound Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

sound will be louder but pitch will not be different

sound will be louder and pitch will also be higher

sound will be louder but pitch will be lower

both loudness and pitch will remain unaffected

Question 2

particles of medium travel from one place to another

these is no moisture in the atmosphere

disturbance projects

both particles and disturbances travel from one place to another.

Question 3

dog

bat

rhinoceros

human beings

Question 4

Ultrasound

Infrasound

Audible sound

None of these

Question 5

infrasonic speed

sonic speed

ultrasonic speed

supersonic speed

Question 6

slower in warm air than in cold air

faster in solids and liquids than in air

slower in water than air

none of these

Question 7

50 Hz

100 Hz

150 Hz

200 Hz

Question 8

1750 m

1815 m

3000 m

3500 m

Question 9

sound does not become distorted

sound reach all parts of the hall after reflection from curved ceilings

reverberation is avoided

none of these

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

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