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CBSE Class 10 Answered

What effect causes argon and neon to conduct electricity in the gas filled tube lights?
Asked by minnumurali13 | 01 Dec, 2020, 11:22: AM
answered-by-expert Expert Answer
Argon and Neon are mono-atomic gases. Monoatomic gases are easily ionizable in electric field.
To ionize diatomic and polyatomic molecules , these molecules are to be dissociated first and then energy from
elecric field will be utilized to ionize the dissociated atoms. Hence energy requirement to ionize diatomic and polyatomic
gases is very much higher in comparison with the energy requirement to ionize mono atomic gases.
 
Energetic electrons generated due to ionizations collide with neon or argon atoms and make it to excited state .
When excited atoms of neon and argon comes to ground state, energy is released in the form of visible light .
Answered by Thiyagarajan K | 01 Dec, 2020, 04:06: PM

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CBSE 10 - Physics
An object is kept at a distance of 15 cm from a (a) Convex mirror (b) Plane mirror The focal length of the convex mirror and the concave lens are 10 cm each. Draw the appropriate ray diagrams, showing the formation of image, in each of the three cases.
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CBSE 10 - Physics
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CBSE 10 - Physics
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CBSE 10 - Physics
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CBSE 10 - Physics
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CBSE 10 - Physics
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