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Define reverberation? And how to reduce it

Posted by Shantan Madake 2 years, 8 months ago

CBSE > Class 09 > Science

5 answers

Khushi Vats 2 years, 8 months ago

The repeated reflection the results in the persistence of sound is called reverberation. To reduce Rverberation the roofs and the walls of auditorium were generally covered with sound absorbent material like compressed fireboard rough plaster and draperies.

Smriti Gupta 2 years, 8 months ago

The repeated reflection of sound in large halls, auditorium etc,that results in persistence of hearing is called reverberation. It is reduced to a value where it is no longer audible.

Jina Nath 2 years, 8 months ago

The repeated reflection of sound in large halls, auditorium etc,that results in persistence of hearing is called reverberation. It is reduced to a value where it is no longer audible.

Khushboo . 2 years, 8 months ago

Reverberation is the repeating of sound in big enclosed space is called Reverberation Its can reduced by celling walls and by using sound observing material like Vollen and fibers boards

Bhawna Sharma 2 years, 8 months ago

Reverberatin is the repetition of the sound in the medium

ANSWER

If a equal to 4-root 15 find all 11 parts

Posted by Bhavya Bansal 2 years, 8 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Through which of the following seeds, the good amount of yielding is possible through one type of plant

Posted by ꜱᴜʙʜᴀɴ ᴀʟɪ 2 years, 8 months ago

CBSE > Class 09 > सामाजिक विज्ञान

2 answers

Preeti Dabral 2 years, 8 months ago

Sunflower

Salma Salma 2 years, 8 months ago

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ANSWER

Chapter send me of it plz

Posted by Radhika Pawar 2 years, 8 months ago

CBSE > Class 09 > Information Technology (402)

0 answers

ANSWER

If x=2+√2 then Find (x+1/x)^2

Posted by Aditya D 2 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Smriti Gupta 2 years, 8 months ago

16

ANSWER

Explain the typing ergonomics.

Posted by Krati Agnihotri 2 years, 8 months ago

CBSE > Class 09 > Computer Applications (165)

2 answers

Preeti Dabral 2 years, 8 months ago

The goal of typing ergonomics is to reduce the strain, stress and wear and tear of your joints as you repeatedly type away. According to Occupational Safety and Health Administration (OSHA) Statistics, about 95% of an office worker's day is spent in front of the computer, typing and using the mouse.

Preeti Dabral 2 years, 8 months ago

The ergonomics of typing looks at the correct set up of desk equipment as well as posture and how to correctly type at a desk. The goal of typing ergonomics is to reduce the strain, stress and wear and tear of your joints as you type. You can read about the different ergonomic factors in the workplace here.

ANSWER

Find the cost of fencing a rectangular field whose length and breadth are 22 m and 16m respectively at Rs. 20.50 per metre .

Posted by Varun Kajal 2 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Aditya D 2 years, 8 months ago

Length=22m Breadth=16m Area of rectangle= l×b =22×16=352m2 Cost of fencing=₹20.50 Cost = 352×20.50=₹7216 Ans

ANSWER

Write the steps to insert and delete a placeholder

Posted by Surbhi Sharma 2 years, 8 months ago

CBSE > Class 09 > Information Technology (402)

3 answers

Preeti Dabral 2 years, 8 months ago

Remove a placeholder

On the View tab, click Slide Master.

In the left thumbnail pane, click the slide layout that you want to revise.

Select the placeholder on the layout, then press the Delete key.

Abhinav Rana 2 years, 8 months ago

How do you format text in impress?

Shreyansh Jaiswal 2 years, 8 months ago

Remove a placeholder On the View tab, click Slide Master. In the left thumbnail pane, click the slide layout that you want to revise. Select the placeholder on the layout, then press the Delete key

ANSWER

(3+√3) (3-√3)

Posted by Pushti Jain 2 years, 8 months ago

CBSE > Class 09 > Mathematics

2 answers

Smriti Gupta 2 years, 8 months ago

6

Su Ka 2 years, 8 months ago

(3+√3)(3-√3)=(3)²-(√3)²=9-3=6

ANSWER

What are limitations of rutherford model of an atom ?

Posted by 10200 Paritosh Sunil Khandare 2 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Preeti Dabral 2 years, 8 months ago

According to the Rutherford model, an electron orbiting around the nucleus continuously radiates energy due to the acceleration; hence the atom will not remain stable.
This model could not explain the origin of the line spectra of atoms. Or As electron spirals inwards; its angular velocity and frequency change continuously; therefore it will emit a continuous spectrum.

Smriti Gupta 2 years, 8 months ago

1 According to the Rutherford model, an electron orbiting around the nucleus continuously radiates energy due to the acceleration; hence the atom will not remain stable. 2This model could not explain the origin of the line spectra of atoms. Or As electron spirals inwards; its angular velocity and frequency change continuously; therefore it will emit a continuous spectrum.

ANSWER

(1³+2³+3³)½

Posted by Pooja Arya 2 years, 8 months ago

CBSE > Class 09 > Mathematics

3 answers

Preeti Dabral 2 years, 8 months ago

Smriti Gupta 2 years, 8 months ago

6

Cheran Teja 2 years, 8 months ago

6

ANSWER

What is the difference between National park bio reserve and wildlife sanctuary...?

Posted by Himanshu Gupta 2 years, 8 months ago

CBSE > Class 09 > Social Science

1 answers

Rahul Yadav 2 years, 8 months ago

Monsoon arrives in India every year

ANSWER

Why adolescent population is very important for a countries growth and economy??

Posted by Himanshu Gupta 2 years, 8 months ago

CBSE > Class 09 > Social Science

1 answers

Bhoomi Joshi 2 years, 8 months ago

Because they are the future of the country, if they study hard and maintain proper sanitation they can serve their country and can also be the resource for their country

ANSWER

Why I don't think population is important for a country's economy

Posted by Himanshu Gupta 2 years, 8 months ago

CBSE > Class 09 > Social Science

2 answers

Rahul ._. 2 years, 8 months ago

You are right but because of more population the citizen of a country suffering from unpolymemt which leds to low economy of country

Pooja Arya 2 years, 8 months ago

Listen people will change generation to generation And knowledge, resources, technology will also change generation to generation so population is important for economy as people will have different aspects

ANSWER

Explain why the sole of a shoe is worn out.

Posted by Subankar Sikdar 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Preeti Dabral 2 years, 8 months ago

When we walk on the ground the force of friction between the sole of our shoe and the ground acts opposite to the direction of our motion. It is this force of friction which gradually wears out the sole of our shoe.

ANSWER

Two childrens are at opposite ends of an aluminium rod. One strikes the end of the rod with a stone. Find the ratio of times taken by the sound wave in air an aluminium to reach the second child. Given velocity of sound in air and aluminium are 346 m/s and 6420 m/s respectively

Posted by Subankar Sikdar 2 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Train starts is motion from rest and against the speed of 60 km per hour in 5 minutes it moves with the same information and then explain decreases uniformly to particular hour in next 3 plots free time graph and find the total distance covered by the train

Posted by Prachi Singh 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Rahul ._. 2 years, 8 months ago

Ye paper m nhi ayaga

ANSWER

Assertion: A body completing circular motion has a average velocity zero. Reason: in a circular motion direction is changing continuously

Posted by Prachi Singh 2 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Shantan Madake 2 years, 8 months ago

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Harshit Tomar 2 years, 8 months ago

A is false but R is true

ANSWER

What was introduction code of Louis 16?

Posted by Rahul ._. 2 years, 8 months ago

CBSE > Class 09 > Social Science

3 answers

Jasmeen Kaur 2 years, 7 months ago

Robert owen a leading english manufacturer sought to build a co-operative community called new harmony in Indiana (USA) . Louis blanc wanted government to encourage co-operatives and replace capitalist enterprises.

Rahul ._. 2 years, 8 months ago

Thanks

Justus .... 2 years, 8 months ago

ऑर्डोनेंस सिविल के लुई XIV द्वारा, जिसे कोड लुइस के रूप में भी जाना जाता है, एक व्यापक कोड जो पूरे फ्रांस में एक समान तरीके से नागरिक प्रक्रिया को विनियमित करता है। कोड लुइस जारी रहा, कुछ सुधारों के साथ, प्रक्रिया के कई बुनियादी सिद्धांत जो कि मध्य युग के बाद से प्रचलित थे।

ANSWER

Where is animation tab

Posted by K.R. Monesh 2 years, 8 months ago

CBSE > Class 09 > Information Technology (402)

1 answers

Preeti Dabral 2 years, 8 months ago

The Animation Pane opens on the side of the workspace pane, showing the order, type, and duration of animation effects applied to text or objects on a slide. Locate the effect to which you want to add sound, click the down arrow, and then click Effect Options.

ANSWER

What is sound and how it is produced

Posted by Truptimayee Kadambala 2 years, 8 months ago

CBSE > Class 09 > Science

5 answers

Mrunali Salunke 2 years, 8 months ago

Sound is a form of energy which produce sensation of hearing to our ears sound is produced due to vibration of objects

Sneha Panchal 2 years, 8 months ago

It's is produced by vibration Sensation of hearing in our ear

Sarthki Kulkarni 2 years, 8 months ago

Sound is the form of energy which give us senction of hearing it can be produced by collision of two objects

Smriti Gupta 2 years, 8 months ago

Sound is a form of energy which is produce by the collision of two things

Rahul ._. 2 years, 8 months ago

Sound is a form of energy which is produce by the collision of two things

ANSWER

(1/7π)³ expand

Posted by Debayan Kar 2 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Dolly Verma 2 years, 8 months ago

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

ANSWER

How can IT improve the decision making process in the field of business?

Posted by Astha Astha 2 years, 8 months ago

CBSE > Class 09 > Information Technology (402)

0 answers

ANSWER

Linchu had only one hope what was that

Posted by Bhargavi N 2 years, 8 months ago

CBSE > Class 09 > English Lang & Lit. (184)

1 answers

Sangam Yadav 2 years, 8 months ago

The area where a particular live naturally is called habitat

ANSWER

What is Suside bags

Posted by Shivam Sharma 2 years, 8 months ago

CBSE > Class 09 > Science

5 answers

Drashti Makan 2 years, 8 months ago

Lysosomes are called as suicide bags

Smriti Gupta 2 years, 8 months ago

Lysosomes

Shantan Madake 2 years, 8 months ago

Lysosomes

Parth Goyal 2 years, 8 months ago

Lysosomes

Debayan Kar 2 years, 8 months ago

Lysosomes are suside bags

ANSWER

Who want democracy??

Posted by Shreya Pandey 2 years, 8 months ago

CBSE > Class 09 > Social Science

4 answers

Justus .... 2 years, 8 months ago

Who need democracy 😅😅

Himanshu Gupta 2 years, 8 months ago

Every person of every country wants the democracy because democracy is for the people, by the people and to the people.....

Gauri Sonwane 2 years, 8 months ago

People want democracy

Debayan Kar 2 years, 8 months ago

People want democracy. Democracy is a form of government which rulers are are elected by the people

ANSWER

In fig., Ab||CD angle APQ= 50°, angle PRD=127° then the value of x and y respectively

Posted by Pushkar Gajbhiye 2 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Preeti Dabral 2 years, 8 months ago

We are given that {tex}AB\parallel CD,\angle APQ = {50^\circ }{/tex} and {tex}\angle{/tex}PRD = 127°
We need to find the value of x and y in the figure.
{tex}\angle{/tex}APQ = x = 50° (Alternate interior angles)
{tex}\angle{/tex}PRD = {tex}\angle{/tex}APR = 127° (Alternate interior angles)
{tex}\angle{/tex}APR = {tex}\angle{/tex}QPR + {tex}\angle{/tex}APQ.
127° = y + 50°
{tex}\Rightarrow{/tex} y = 77°.
Therefore, we can conclude that x = 55° and y = 77°
Alternatively, 127° = y + x (because exterior angle is equal to the sum of interior opposite angles).
so, 127° = y + 50°
which gives, x = 50° and y = 77°

ANSWER

Please explain me tenses

Posted by Chanchal Dagar 2 years, 8 months ago

CBSE > Class 09 > English Lang & Lit. (184)

4 answers

Aditya Maurya 2 years, 8 months ago

Search this on YouTube not here kid

Manisha <3 2 years, 8 months ago

tense is a form of the verb that allows you to express time. The tense of the verb tells us when an event or something existed or when a person did something. Past, present, and future are the three main types of tenses. Types of tenses Past, present and future are the three main types of tenses. Past tense The past tense is used to describe an activity or an event that has happened in the past or a past state of being and needs to include a time marker for when the event or action took place. Present tense The simple present tense or present tense is one of the most basic tenses in English. We use present tense to talk about something that is currently going on, something that is habitually performed, or a state that generally or currently exists. Future tense The future tense is a verb tense used to describe an event or action that has not yet happened and is expected to happen in the future.

Debayan Kar 2 years, 8 months ago

Types of tenses are present tense ,past tense and future tense

Debayan Kar 2 years, 8 months ago

It is form of a verb which shows that time of an action and its degree of completeness

ANSWER

Protocols

Posted by Kim Mantasha 2 years, 8 months ago

CBSE > Class 09 > Computer Applications (165)

1 answers

Preeti Dabral 2 years, 8 months ago

a set of rules or procedures for transmitting data between electronic devices, such as computers.

ANSWER

Name different components of population and quality

Posted by Gowtham Kumar Dk 2 years, 8 months ago

CBSE > Class 09 > Social Science

1 answers

Abhishek Kumar 2 years, 8 months ago

The different components of population and quality are following: Education (2) Invest on human resource (3) Make people as an assets

ANSWER

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