🔴 ABSORPTION and EMISSION SPECTRA || ATOMIC SPECTRA || in Hindi for Class 11 Chemistry
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- In this Chemistry / Physics video in Hindi we explained the absorption spectra and emission spectra for class 11. These are also called atomic spectra. Emission spectrum is often called as line emission spectrum.
When white light is passed through a prism it splits into its constituent colours and on the screen we get bands of colour, which are called spectra. As one colour band merges into another, it is called a continuous spectrum.
When white light passes through a gas or a transparent material, light with some specific wavelength are being absorbed and we get some dark lines on the screen. it is called an absorption spectrum.
When the material is made excited by heating or otherwise, it emits light of specific wavelength and on the screen we get some coloured lines. This spectrum is known as emission spectrum.
These spectra are often called atomic spectra.
Link for the playlist on the chapter ‘Structure of Atom’ for Class 11 - Chemistry
• Discovery of Electron ...
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Why are emissions and absorption spectrum called photographic negative of each other
@Ayanika Gain yeah..absolutely .
You can clearly see that there are dark lines obtained in absorption spectrum and coloured lines in emission spectrum...
Therefore , there is negative of each other
Sudh hindi me jo pahle absorption me coloured tha ab emission me vo black ho gaya aur jo pahle absorption me black tha vo emission me coloured ho gaya so there properties changes oppositely.so they are called as photographic negative of each other.
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Chemistry
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Why low wavelength rays bend more ?
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When light rays pass through prism, they always go downwards
My question is why do they go downwards, do they go upwards
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Vahi pe to bend hoga light
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Sir emission spectrum mein continuous spectrum kyu nhi banta h
Q ke emission spectrum mai kuch light ki wavelength absorb ho jaati hai jis ka spectrum nhi bnta or dark light dikhai deti hai is liye ek perfect line dikai deti hai jo ke ise discontinues kr deti hai
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Line spectrum is not emission spectrum
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