Sound Test

Result

Sound Test - 24

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Reverberations in a room is minimized by

A
talking softly

B
using an extra layer of paint

C
use of curtains

D
none of the above

Solution

Curtains absorb most of the sound incident on it and hence eliminate reverberations.
Question 2
1 / -0

What happens when prong of a tuning fork is stretched outward from its normal position?

A
it compresses surrounding air molecules

B
it expands surrounding air molecules

C
it reflects surrounding air molecules

D
it deflects surrounding air molecules

Solution

When one prong of a tuning fork is stretched outward from its normal position.It compresses surrounding air molecules which are closer to the prong, thus creating a region of compression around the prong.
Question 3
1 / -0

What is the use of a tuning fork?

A
It produces sound when it is hit

B
It generates electricity

C
It is used as an electromagnet

D
It is used as a safety device

Solution

A tuning fork is a common device in any experiment with sound. The tuning fork is made to hit so that it vibrates. The vibration of the tuning fork produces a sound.
Question 4
1 / -0

What all are the uses of ultrasound?

A
Detection of ailments in human body

B
Cleaning machinery parts

C
Detection of any deformities in metal blocks

D
All of the above

Solution

Ultrasound can be used in
1. detection of ailments in human body
2. cleaning machinery parts where our hand can't reach to clean
3. detection of any deformities in metal blocks
Hence D is the answer.
Question 5
1 / -0

On what factor does speed of wave depends

A
Properties of medium

B
Properties of object

C
Frequency of the sound

D
None

Solution

In any medium velocity of sound is constant for all wavelengths. Hence wavelength does not depend on the frequency of wave. But it depends on Medium properties.
Option A
Question 6
1 / -0

What are the high-pressure regions also known as when they get created due to vibrations in a tuning fork?

A
Rarefaction

B
Compression

C
Reflection

D
Refraction

Solution

When a tuning fork strikes a rubber pad, the back and forth vibration of the tines produces disturbance of surrounding air molecules. As a tine stretches outward from its position, it compresses surrounding air molecules into a small region of space, this creates a high-pressure region next to the tine. These high-pressure regions are known as compressions.
Question 7
1 / -0

What are the low pressure regions known as which are created when tuning fork vibrates?

A
Compression

B
Reflection

C
Rarefaction

D
Refraction

Solution

When tuning fork vibrates in the medium then it creates sound wave. This sound wave propagates and changes the medium pressure. Maximum pressure attend is called compression and lower pressure is called rarefaction.
Question 8
1 / -0

When slinky is stretched out in a horizontal direction and first coils are vibrated horizontally then which waves are generated?

A
Longitudinal Waves

B
Transverse Waves

C
Surface waves

D
None

Solution

Longitudinal Waves are generated when slinky is stretched out in a horizontal direction and first coils are vibrated horizontally.
Question 9
1 / -0

Which of the following is NOT a characteristic of longitudinal wave?

A
Wavelength

B
Amplitude

C
Velocity

D
None
Solution
All of the above are characteristics of Longitudinal waves.
The wavelength in longitudinal wave refers to the distance between two consecutive compressions or between two consecutive rarefactions.
In a longitudinal wave, amplitude is measured by determining how far the molecules of the medium have moved from their normal rest position.
Rate of propagation of a longitudinal wave parallel to the direction of motion of the particles is called its velocity.
Question 10
1 / -0

What does the first law of reflection say?

A
The angle of incidence and the angle of reflection are equal

B
The angle of refraction and the angle of reflection are equal

C
The angle of reflection is always zero

D
None of the above

Solution

The first law of reflection says that
$$\text{The angle of incidence} = \text{The angle of reflection}$$

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Sound Test - 24

Result

Sound Test - 24

Score

-

Rank

-

SHARING IS CARING

Question 1

talking softly

using an extra layer of paint

use of curtains

none of the above

Solution

Question 2

it compresses surrounding air molecules

it expands surrounding air molecules

it reflects surrounding air molecules

it deflects surrounding air molecules

Solution

Question 3

It produces sound when it is hit

It generates electricity

It is used as an electromagnet

It is used as a safety device

Solution

Question 4

Detection of ailments in human body

Cleaning machinery parts

Detection of any deformities in metal blocks

All of the above

Solution

Question 5

Properties of medium

Properties of object

Frequency of the sound

None

Solution

Question 6

Rarefaction

Compression

Reflection

Refraction

Solution

Question 7

Compression

Reflection

Rarefaction

Refraction

Solution

Question 8

Longitudinal Waves

Transverse Waves

Surface waves

None

Solution

Question 9

Wavelength

Amplitude

Velocity

None

Solution

Question 10

The angle of incidence and the angle of reflection are equal

The angle of refraction and the angle of reflection are equal

The angle of reflection is always zero

None of the above

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.