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Difference between wavelength and frequency and how is formed?

Posted by Ritik Raj 7 years, 2 months ago

1 answers

Meghna Thapar 5 years, 6 months ago

Light is measured by its wavelength (in nanometers) or frequency (in Hertz). One wavelength. equals the distance between two successive wave crests or troughs. Frequency (Hertz) equals the number of waves that passes a given point per second. Wavelength which is the distance between each sound wave. Frequency which is the number of times a sound wave occurs. The measure of how often a peak created by a sound wave occurs or passes a point. It is measured in hertz and is the vibration that is caused by the contact between sound waves and peaks or troughs.

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Why are petroleum and its derivates called black gold??

Posted by Divyansh Goel 7 years, 2 months ago

CBSE > Class 08 > Social Science

2 answers

Sairaj Vaykul 7 years, 2 months ago

IT IS CORECT THAT IT OBTINED BY CRUD OIL. WHICH IS BLACK IN COLOUR MAIN RESON IS.... THAT THE PETROLUN IS COSTLY BY COMPARING TO GOLD SO IT IS CALLED AS BLACK GOLD.... THANKS

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Abhishek Saini 7 years, 2 months ago

Because itvis obtained from crude oil , which is black in colour .

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20caravans are traveling

Posted by Ampili Jayakumar 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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What are the main differences between Real Image and Virtual Image

Posted by Ridhi Beriwal 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years ago

The following are the main differences between a real image and virtual image.
1.A real image can be caught on a screen whereas a virtual image cannot be caught on a screen.
2. A real image is always inverted whereas a virtual image is always erect.
3. A real image is formed when the rays of light after reflection or refraction actually meet at some point whereas a virtual image is formed when the rays of light after reflection or refraction appear to meet at a point.

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Which movement was taken by Periyar?What was the objective of this movement

Posted by Ridhi Beriwal 7 years, 2 months ago

CBSE > Class 08 > Social Science

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what was the purpose of visit of aliens in alsop farm in the story star ducks

Posted by Sachin Bidawat 7 years, 2 months ago

CBSE > Class 08 > English

0 answers

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What is called vibration

Posted by Hari Shma 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Ridhi Beriwal 7 years, 2 months ago

In its simplest form, vibration can be considered to be the oscillation or repetitive motion of an object around an equilibrium position. ... This type of vibration is called "whole body motion", meaning that all parts of the body are moving together in the same direction at any point in time.

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Reflection

Posted by Gagan Singh 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Jai Kashyap 7 years, 2 months ago

The process of reflecting the light in any direction by any shiny surface like water mirror etc is called reflection

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Why there is not hindi workbook solution plz update it

Posted by Anupam Jakhar 7 years, 2 months ago

CBSE > Class 08 > हिंदी

2 answers

Sairaj Vaykul 7 years, 2 months ago

It is 100, % correct ?

1Thank You

Jai Kashyap 7 years, 2 months ago

There r different publication workbooks.NCERT does not publish its official workbooks.So u cant find answers of workbooks anywhere cause its not official ncert workbooks.

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Compare LPG gas and Wood as fuel? And explains it clearly

Posted by Ravneet Dhanda 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Sairaj Vaykul 7 years, 2 months ago

LPG. burns easily and produce more heat In comparison of wood..besides it is a clean fueal it does not produce fum and ashs as wood do lpg can be stored and transPorted easily and conveniently............. Thank you

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5 method to maintain the green cover of the earth?

Posted by Shivani Garg 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Sairaj Vaykul 7 years, 2 months ago

Main think we should plant trees

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Hindi garima book pg 99 answer

Posted by Rupinder Singh 7 years, 2 months ago

CBSE > Class 08 > हिंदी

0 answers

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%of100

Posted by Posa Venkata Bhuvanesh 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Sairaj Vaykul 7 years, 2 months ago

What 100 per

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We try and divide history into different. periods

Posted by Posa Venkata Bhuvanesh 7 years, 2 months ago

CBSE > Class 08 > Social Science

1 answers

Vidhi Gupta 7 years, 2 months ago

James mill try and divide history into different periods

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The industrial cities in Britain were_and_

Posted by Sona Sona Roy 7 years, 2 months ago

CBSE > Class 08 > Social Science

0 answers

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Which non metal is in liquid form

Posted by Jahnvi Singh 7 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Sairaj Vaykul 7 years, 2 months ago

BROMINE IS AN NON METAL WHICH IS IN LIQUID FORM

2Thank You

Jai Kashyap 7 years, 2 months ago

Bromine

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Jahnvi Singh 7 years, 2 months ago

Bromine

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Paheli remembers that a magnet attracts a piece of iron towards it.Is attraction also a pull?What about repulsion between similar poles of two magnet?Is it a pull or push?

Posted by Md Akhlaqur Rahman 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Rock Star 7 years, 2 months ago

Yes it is a pull. Repulsion is push

3Thank You

Jahnvi Singh 7 years, 2 months ago

It's a magnetic force it not push and pull

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How is Univers formed

Posted by Sakina Burhani 7 years, 2 months ago

CBSE > Class 08 > English

2 answers

Jai Kashyap 7 years, 2 months ago

According to many scientists it is formed due to a great explosion called BIG BANG in which a spark of light first appeared and then transformed to formation of universe {NOTE: your univers spelling is wrong It is universe}

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Ayush Kishan Agrawal 7 years, 2 months ago

By the help of me

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How is Universe

Posted by Sakina Burhani 7 years, 2 months ago

CBSE > Class 08 > English

1 answers

Jai Kashyap 7 years, 2 months ago

Pls write the complete question

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What is the diffrence between unpopular. And controlversial law

Posted by Prasanna Sikchi 7 years, 2 months ago

CBSE > Class 08 > Social Science

1 answers

Yogita Ingle 7 years, 2 months ago

People might feel that the intention behind the passage of such a law would be harmful to their interest and that the law is morally wrong and unjust. These are called unpopular laws. For example, Armed Forces Special power Act , which gives special powers to the armed forces to arrest anybody on mere suspicion in the states of North East and Jammu and Kashmir, is not acceptable to the people residing in those states and they want this law to be removed.
Like wise, there may be some controversial laws passed by the Parliament which may favour a particular section of community. For example , In India we still do not have a uniform civil code, Muslims have separate personal laws which is not acceptable to the rest of the society members belonging to other communities.

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Table 4.4of ch4

Posted by Gurnoor Singh 7 years, 2 months ago

CBSE > Class 08 > Science